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  • 1
    Electronic Resource
    Electronic Resource
    Probing changes in the structure and performance of a lithium nickel oxide catalyst by in situ X-ray diffraction during the high temperature oxidative coupling of methaneWe thank the Science and Engineering Research Council for a studentship (to I J P), a fellowship (to P J M) and an equipment grant (to J M T). (1989)
    Weinheim : Wiley-Blackwell
    Advanced Materials 1 (1989), S. 194-196 
    Details
    ISSN: 0935-9648
    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
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adma.19890010604
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  • 2
    Electronic Resource
    Electronic Resource
    Review of Interflam'85 (1985)
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 9 (1985), S. 192-197 
    Details
    ISSN: 0308-0501
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The International Conference Interflam'85 was held at the University of Surrey, Guildford, UK, on 26-8 March 1985. This third conference in the Interflam series was set up with the specific aim to bring together the 1985 state of the art of fire science and to show particularly how this information can be put to practical use in the saving of lives. Over 45 speakers, each specialists in their own field of work, some 15 different countries contributed papers. Dr Peter Allender, formerly of Metro-Cammell and now with John Allen Associates, has seen the Conference both from the lecturing platform and from the audience. He has been invited to give his views about Interflam'85.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fam.810090408
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  • 3
    Electronic Resource
    Electronic Resource
    The effect of 14CO contact times on active centre determinations for the polymerization of ethylene catalysed by bis(η-cyclopentadienyl)zirconium(IV) dichloride/methylaluminoxane (1988)
    Basel : Wiley-Blackwell
    Die Makromolekulare Chemie, Rapid Communications 9 (1988), S. 393-398 
    Details
    ISSN: 0173-2803
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/marc.1988.030090604
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  • 4
    Electronic Resource
    Electronic Resource
    Water immersion of polysulfide sealants. II. An interpretation of the influence of curing systems on water resistancePresented at Adhesives, Sealants and Encapsulants 85 (Network Events), London, U.K., November 1985. (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 32 (1986), S. 5415-5429 
    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: Dichromate cured polysulfide sealants have superior resistance to swelling in hot water than those cured with manganese dioxide and examinations to identify the reasons for this difference were undertaken. The commercial sealants PR-1422, PR-1750, and Pro-Seal 899 were shown to contain similar types and loading of fillers. Crosslink densities were compared through a procedure involving an oscillating disc cure meter modified to accommodate mobile mixtures. No relationship between stability and crosslinking was observed. Formation of large voids in MnO2-cured sealants after prolonged immersion at 70-90°C, suggests the formation of a water-soluble acid which then reacts with the CaCO3 filler, and this was supported by pH measurements. The acid was shown to arise through autoxidation of formal groups in the polysulfide, and this process can be suppressed by radical scavengers (including ammonium dichromate). When PR-1750 was examined under nitrogen or with carbon black as filler, a similar time-swell curve to that of PR-1422 was produced. It was concluded that abnormal swell does not result simply from autoxidation: a filler capable of reacting with the acid must also be present.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1986.070320614
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  • 5
    Electronic Resource
    Electronic Resource
    Protein-reactive, molded polystyrene surfaces having applications to immunoassay formats (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 34 (1987), S. 1917-1924 
    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: Injection-molded polystyrene surfaces were chemically modified rendering them protein reactive. The process involves chlorosulfonation of the aromatic ring, sulfonamide formation with excess di- and triamines, and reaction of the residual pendant amines with various bifunctional molecules. Surfaces possessing pendant bromoacetyl, iodoacetyl, fluorodinitrophenyl, and trimellitic anhydride were prepared and can exhibit up to ten times more protein immobilization capability compared to unfunctionalized polystyrene, where the coupling takes place presumably via hydrophobic interaction.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1987.070340510
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  • 6
    Electronic Resource
    Electronic Resource
    Post-gamma-irradiation grafting of polypropylene. Part II. Butadiene: E.S.R. experiments (1986)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 24 (1986), S. 3089-3099 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: ESR spectra of gamma irradiated annealed and quenched forms of polypropylene film have been studied at the temperatures used for post-irradiation grafting experiments with butadiene, described in Part I. On warming from low temperature there is radical loss by termination and some radical transformation to radicals with optimum stability in annealed polypropylene at approximately 45°C. These radicals, which may be allyl type, are sited at the crystal faces, and decay more rapidly at higher temperatures in annealed polypropylene; in quenced polypropylene their concentration never exceeds one third the optimum observed in annealed polypropylene. Correlation with the grafting experiments suggests that allyl radicals are important for long-term grafting. Effects on the ESR spectrum of adding butadiene to the system show that in the long-term butadiene adds exclusively to the allyl radicals and that alkyl radicals still present at that stage are precursors to the allyl radicals. They do not react directly with butadiene presumably because they are sited in the inaccessible crystal core. Experiments at lower temperature show that butadiene does react with alkyl radicals in accessible regions.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1986.080241133
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  • 7
    Electronic Resource
    Electronic Resource
    Two-Dimensional NMR studies of [Pro-10] atrial natriuretic factor [7-23] (1988)
    New York : Wiley-Blackwell
    Biopolymers 27 (1988), S. 313-321 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The conformational properties of an analog of atrial naturiuretic factor, [Pro-10] ANF(7-23), were examined in H2O, H2O/DMSO-d6 (2/1), and DMSO-d6 using two-dimensional nmr techniques. The sequence differs from the native peptide by the absence of the exocyclic N- and C-terminal residues, and the substitution of a proline for a glycine at position 10 - a modification expected to reduce the conformational flexibility of this analog. The backbone proton nmr resonances were assigned from two-dimensional correlated spectroscopy (2D-COSY), relayed COSY, and 2D nuclear Overhàuser enhancement (NOE) experiments, and the solution conformation was evaluated from vicinal spin-spin coupling constants and NOE data. Despite the substitution of a proline in the sequence, [Pro-10] ANF(7-23) exhibits a considerable amount of flexibility in all of the solvents employed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360270210
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  • 8
    Electronic Resource
    Electronic Resource
    An ultraviolet-cured, pH-sensitive membrane electrode for use in flow injection analysis (1989)
    Weinheim : Wiley-Blackwell
    Electroanalysis 1 (1989), S. 353-356 
    Details
    ISSN: 1040-0397
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The preparation of an epoxyacrylate, UV-cured polymer membrane electrode for determining pH is described. This is based on the neutral carrier, tridodecylamine, and shows Nernstian behavior from pH 5 to 10. Interferences from cations in this range are negligible. The response of the electrode is very fast, reaching more than 90% of the equilibrium value in less than 1 second, which makes it very suitable for use in flow injection analysis (FIA). The application of the electrode to the determination of pH in flow injection analysis using a miniature flow cell is described, and the influence of the buffer capacity and pH of the carrier on the accuracy of the pH measurement is discussed. The FIA system has been applied to the determination of the acidity of some soil samples.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elan.1140010412
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  • 9
    Electronic Resource
    Electronic Resource
    Polydispersity effects on diffusion in polymers: Concentration profiles of d-polystyrene measured by forward recoil spectrometry (1986)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 24 (1986), S. 1-9 
    Details
    ISSN: 0887-6266
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Forward recoil spectrometry is shown to be a useful technique for measuring diffusion of d-polymer chains in h-polymer melts. Concentration profiles of a deuterated diffusing species may be determined with a depth resolution of 80 nm and a sensitivity of 0.1 vol % d-polymer in h-polymer. Consequently diffusion coefficients as small as 10-16 cm2/s can be readily measured. If polymer chains diffuse by a reptation mechanism, the concentration profile ø(x) of diffusing polydisperse polymer should be quite different from øm(x), the Fickian solution, which one obtains for monodisperse polymer. This idea was tested by measuring ø(x) of polydisperse d-polystyrene (d-PS) diffusing into h-PS. The results are in excellent agreement with the ø(x) predicted from the reptation model and the experimentally determined molecular weight distribution.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1986.180240101
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  • 10
    Electronic Resource
    Electronic Resource
    New developments in thermoplastic alloysPresented at the OEM Design Conference in Philadelphia. (1986)
    Hoboken, NJ : Wiley-Blackwell
    Advances in Polymer Technology 6 (1986), S. 79-84 
    Details
    ISSN: 0730-6679
    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
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adv.1986.060060105
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