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  • 1
    Electronic Resource
    Electronic Resource
    Acrylic latex film formation in the critical temperature range (1964)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 8 (1964), S. 755-764 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A shear wave of 15 megacycle frequency and four microsecond duration was made to impinge on the under-side of a series of ethyl acrylate-methyl methacrylate copolymer films on fused quartz. Reduction in the reflection coefficient of the pulse provided a direct measure of the increased viscosity and elasticity of the film as it dried, as well as the loss in adhesion which occurred in some cases. Upon reducing the minimum film-forming temperature (MFT) from 54 to 32°C. by increasing the ethyl acrylate content from 35 to 50%, the adhesion loss was reduced, eventually to zero, depending on the drying rate. Despite the fact that elasticity of the latex particles is the controlling parameter in film quality, a dependence on their viscosity was revealed by this work.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1964.070080216
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  • 2
    Electronic Resource
    Electronic Resource
    Dynamic rheology of modified starchesThis paper was presented to the Carbohydrate Division of the American Chemical Society, St. Louis, Mo., March 23, 1961, and is based on work supported by the Corn Industries' Research Foundation. (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 6 (1962), S. 659-666 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Viscosities η and rigidities G were determined for 5% pastes of phosphate-linked white milo starches and acidmodified cornstarches, using a resonance elastometer operating in the frequency range 0.1 to 40 cycles/sec. Most of the starches behaved as ideal Kelvin solids under these conditions, thereby permitting η and G to be evaluated from the height and location of the resonance peak. Sample calculations of η and G are given, followed by a discussion of the trends displayed by these values as the severity of treatment is increased.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1962.070062410
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  • 3
    Electronic Resource
    Electronic Resource
    Conversion of hexaphenylcyclotrisilazane and related materials to infusible polymers and coatings (1965)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 9 (1965), S. 2811-2817 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: When hexaphenylcyclotrisilazane was heated above 450°C. at atmospheric pressure, it formed an infusible polymer of exceptional thermal and chemical stability. The polymerization, which was accompanied by elimination of benzene, is represented approximately by the equation: \documentclass{article}\pagestyle{empty}\begin{document}$\eta [({\rm C}_6 {\rm H}_5)_2 {\rm SiNH}]_3\,\, \to \,\,({\rm C}_6 {\rm H}_5 {\rm SiN})_{3n} + 3n{\rm C}_6 {\rm H}_6$\end{document} The infusible polymer was a foamed, vitreous, pale yellow solid with a high degree of stability to heat, acids, alkali, and organic solvents. A similar reaction occured with a resein that was obtained as a by-product in the preparation of hexaphenylcyclotrisilazane and with a mixture of silylamines that was obtained from the reaction of methylphenyldichlorosilane with ammonia. Coatings on aluminum and steel prepared by heating the silylamine polymers had good thermal stability and adhesion. Inclusion of a polymeric dimethylsilyl derivative of ethylenediamine improved the flexibility of the coatings.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1965.070090815
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  • 4
    Electronic Resource
    Electronic Resource
    Graft copolymerization of nylon 6 with methylmethacrylate and methylacrylate. II. Physical properties of the copolymers (1973)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 32 (1973), S. 163-175 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die physikalischen Eigenschaften von mit Methylmethacrylat und Methylacrylat in Stickstoffatmosphäre bei 60 °C unter Verwendung von Cerionen als Initiator gepfropftem Nylon-6-Garn wurden mit den Eigenschaften des Ausgangsgarns verglichen. Mit zunehmendem Pfropfungsgrad wurde eine höhere Dichte, geringeres Feuchtigkeitshaltevermögen und geringere Doppelbrechung festgestellt. Die mechanischen Eigenschaften wurden beträchtlich herabgesetzt. Bei den dynamischen Eigenschaften ergab sich eine höhere mechanische Dämpfung und vermindertes elastisches Verhalten. Die Anfärbbarkeit war ebenfalls herabgesetzt.
    Notes: The physical properties of nylon 6 yarn grafted with methylmethacrylate and methylacrylate in nitrogen atmosphere using ceric ion as initiator at a temperature of 60 °C have been compared with those of ether extracted and initiator treated parent yarn. With an increase in graft-on percentage an increase in density, decrease in moisture regain and birefringence was observed. The mechanical properties were impaired considerably. The dynamic mechanical properties results indicated increase in mechanical damping and reduction in elastic behaviour as a consequence of graft copolymerization. The dye uptake was also found to be decreased in these grafted samples.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1973.050320114
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  • 5
    Electronic Resource
    Electronic Resource
    Modification of polysaccharides: Degradation and graft copolymerization onto dextran (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 129 (1985), S. 11-29 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Ein wasserlösliches Muco-Polysaccharid, „Dextran“, wurde selektiv abgebaut und mit Acrylamid sowie Methylmethacrylat pfropfcopolymerisiert. Mit Cer(IV)-Ionen als Initiator wurden ein niedermolekulares Modell-Dextran und außerdem Dextran-g-polyacrylamid- und Dextran-g-polymethylmethylmethacrylat-Copolymere hergestellt. Der selektive Kettenabbau und die Pfropfcopolymerisationen wurden mit verschiedenen Konzentrationen an Ce(IV) und Monomeren sowie bei verschiedenen Temperaturen durchgeführt. Der Verlauf des Abbaus durch Kettenspaltung wurde viskosimetrisch verfolgt. Das niedermolekulare Modell-Dextran und die Copolymeren wurden durch übliche Methoden gereinigt. Ihre physikalischen und chemischen Eigenschaften wurden bestimmt und mit denen der Ausgangssubstanzen verglichen. Die Aktivierungsenergie für den Kettenabbau und andere verwandte thermodynamische Parameter wurden errechnet.
    Notes: A water soluble muco-polysaccharide, “dextran”, was subjected to selective degradation and graft copolymerized with acrylamide and methylmethacrylate. Using ceric ions as initiator a low molecular weight model dextran and dextran-g-poly(acrylamide) as well as dextran-g-poly(methylmethacrylate) copolymers were prepared. The selective chain degradation and the graft copolymerizations were carried out at varying concentrations of Ce(IV) and monomer and varying temperatures. The course of degradative chain cleavage has been followed by viscometry. The low molecular weight model dextran and the copolymers were purified by usual methods. Their physical and chemical properties were tested and compared with the base. The energy of activation for the chain degradation and other related thermodynamic parameters have been evaluated.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1985.051290102
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  • 6
    Electronic Resource
    Electronic Resource
    Graft copolymerization of nylon 6 with methylmethacrylate and methylacrylate, I. Optimum conditions of grafting and thermal behaviour of the copolymers (1973)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 32 (1973), S. 81-90 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Nylon-6 wurde mit Methylmethacrylat und Methylacrylat unter Verwendung von Cer-Ionen/Schwefelsäure als Initiator gepfropft. Proben mit verschiedenem Pfropfungsgrad wurden durch Variation der Reaktionsbedingungen hergestellt. Die thermische stabilität dieser gepfropften Produkte wurde im Vergleich zum Ausgangsnylon durch dynamische Thermogravimetry untersucht; danach nimmt die thermische Stabilität als Folge der Pfropfung ab.
    Notes: Nylon 6, 20 denier, monofilaments were grafted with methylmethacrylate and methylacrylate using ceric ion/sulphuric acid as initiator. Grafted nylon samples with different % graft-on were prepared by varying the reaction conditions. The thermal stabilities of these grafted samples were compared with parent nylon using dynamic thermogravimetry in air at a heating rate of 6 °C/min up to a temperature of 550 °C. The initial decomposition temperature (IDT) integral procedureal decomposition temperature (IPDT) and activation energy (E) values indicated that thermal stability decreased as a result of grafting.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1973.050320106
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  • 7
    Electronic Resource
    Electronic Resource
    Polymers from renewable resources, part 7. Synthesis and properties of polyamideimide from rosin-maleic anhydride adduct (1984)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 122 (1984), S. 153-167 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Ein Polymamidimid wurde aus einem Kolophonium-Maleinsäureanhydrid-Addukt auf drei verschiedenen Wegen hergestellt. Das Kolophonium-Maleinsäureanhydrid-Addukt wurde mit Hexamethylendiamin kondensiert und eine Aminosäure erhalten. Diese Aminosäure wurde zu Polyamidimid polymerisiert, entweder durch Schmelzkondensation oder durch Reaktion mit Thionylchlorid bei Raumtemperatur. Polyamidimid aus Kolophonium kann auch durch Reaktion des Säurechlorids des Kolophonium-Maleinsäureanhydrids mit Hexamethylendiamin hergestellt werden. Das Polymer wurde durch IR- und Elementaranalyse charakterisiert. Es war nur in hochpolaren Lösungsmitteln wie Dimethylformamid, Dimethylsulfoxid, m-Kresol etc. löslich. Die thermische Stabilität des Polymeren wurdē ebenfalls untersucht.
    Notes: A polyamideimide was synthesized from a rosin-maleic anhydride adduct in three different ways. The rosin maleic anhydride adduct was condensed with hexamethylenediamine to obtain an amino acid. This amino acid was polymerized either by melt condensation technique or by reacting with thionyl chloride at ambient temperatures to produce a polyamideimide. Polyamideimide from rosin may also be prepared by reacting acid chloride of rosin-maleic anhydride with hexamethylenediamine. The polymer was characterized by IR and elemental analysis. The polymer was found to be soluble only in highly polar solvents such as dimethyl formamide, dimethyl sulfoxide, m-cresol etc. The thermal stability of the polymer has been studied.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1984.051220116
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  • 8
    Electronic Resource
    Electronic Resource
    PAN-Grafted guaran. II. Short-chain graftingPart I cf. lit.3. (1988)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 156 (1988), S. 59-67 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Das Pfropfen von Polyacrylnitril (PAN) auf Guaran wurde mit (NH4)2 Ce (NO3)6 in 1 M HNO3, initiiert und in 2,5 · 10-3 M wäßrigen, kolloidalen Lüsungen oder wäußrig-methanolischen Suspensionen durchgeführt. Diese Reaktion füihrte zu Polysacchariden mit PAN-Seitenketten. Die Pfropfgehalte betrugen 11 - 53%. Der Abbau der Hauptkette erfolgte mit siedender wäßriger HCl und führte zur Abtrennung der PAN-Seitenketten. Das zahlenmittlere Molekulargewicht dieser Seitenketten wurde viskosimetrisch mit Hilfe der bekannten Mark-Houwink-Gleichung (K = 3,92 · 10-4, a = 0,75) zu ca. 15000-48000 bestimmt. Die Pfropfhäufigkeiten sind im Bereich von 0,004 - 0,012, dies entspricht im Durchschnitt 80 - 250 nichtgepfropften Repetiereinheiten pro gepfropfte Einheit in der Guaranhauptkette. Die Pfropfcopolymeren sind als Vorläufer von carboxylfunktionalisierten, wasserlöslichen Polysacchariden interessant, die in späteren Untersuchungen als polymere Spurenelement-und Arzneimittelträger verwendet werden.
    Notes: The room-temperature grafting of polyacrylonitrile (PAN) onto guaran (guar gum) in 2.5 × 10-3 M aqueous sols or aqueous-methanolic suspensions, initiated by (NH4)4 Ce(NO3)6 in 1M HNO3, leads to PAN-branched polysaccharides with graft contents of 11 - 53%. Main chain degradation by treatment with boiling aqueous HCl results in detachment of the PAN side chains, for which number-average molecular masses of ca. 15000 - 48000 are determined viscometrically with the aid of the known Mark-Houwink relationship (K = 3.92 × 10-4, a = 0.75). Grafting frequencies are in the range of 0.004 - 0.012, equivalent to an average of 80 - 250 non-grafted repeat units for every singly grafted unit in the guaran main chain. The graft copolymers are of interest as precursors of carboxyl-functionalized, water-soluble polysaccharides to serve as polymeric micronutrient and drug carriers of future studies.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1988.051560106
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  • 9
    Electronic Resource
    Electronic Resource
    Synthesis and biological activity of chlorinated polyketone resins (1991)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 192 (1991), S. 103-111 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Durch Kondensation von p-Xylol mit Chloracetylchloride, 1,2-Dichlorethan und Dichlormethan mit Aluminiumtrichlorid in Schwefelkohlenstoff wurden Polyketone hergestellt und IR-spektroskopisch sowie bezuglich des Molekulargewichtes charakterisiert. Die thermischen Eigenschaften wurden thermogravimetrisch und mittels DSC untersucht. Die Prüfung der Harze auf ihre biologische Aktivität gegen Pseudomonas fluorescens, Bacillus subtilis and Aspergillus niger ergab, daß deren Wachstum durch die Polyketonharze kontrolliert werden kann.
    Notes: Some polyketones were prepared from p-xylene, chloroacetylchloride, 1,2-dichloroethane and dichloromethane using anhydrous aluminiumtrichloride and carbon disulfide as solvent. The resins thus obtained have been characterized by IR spectra and number average molecular weight. The thermal properties have been studied by thermogravimetry and differential scanning calorimetry. All the resins were tested for their biological activity against Pseudomonas fluorescens, Bacillus subtilis and Aspergillus niger. The results show that the growth of the tested organisms can be controlled by the polyketone resins.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1991.051920109
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis and biological activity of chlorine-containing polyketones (1994)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 220 (1994), S. 1-10 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Chlorhaltige Polyketone mit niedrigem Molekulargewicht wurden nach Friedel-Crafts aus Anisol, Chloracetylchlorid and Dichloralkanen (Dichlormethan, 1,2-Dichlorethan) in Kohlenstoffdisulfid hergestellt. Die Harze wurden mittels IR-Spektroskopie und Dampfdruckosmometrie charakterisiert. Das thermische Verhalten wurde thermogravimetrisch und differentialkalorimetrisch untersucht. Die Zersetzungscharakteristik wurde nach Broido und Doyle ermittelt. Die Prüfung der mikrobiellen Aktivität der Harze gegenüber Bakterien, Pilzen und Hefen ergab, daß sich die meisten Harze als Biozide verwenden lassen.
    Notes: Chlorine-containing polyketones of low molecular weight were synthesized from anisole, chloroacetyl chloride and dichloroalkanes, i. e. dichloromethane and 1,2-dichloroethane, by the Friedel-Crafts reaction using carbon disulfide as solvent. The resins were characterized by IR spectra and vapour pressure osmometry. The thermal properties were studied by thermogravimetry and differential scanning calorimetry. The characteristics of the decomposition reactions were evaluated by the Broido and Doyle methods. All the resins were tested for their microbial activity against bacteria, fungi and yeast. The results show that most of the resin can be used as biocides.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1994.052200101
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