ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Physics  (2)
  • functionalization  (1)
  • phase-transfer catalyst  (1)
Collection
Publisher
  • 1
    Electronic Resource
    Electronic Resource
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 30 (1992), S. 299-304 
    ISSN: 0887-624X
    Keywords: polyformal ; polycarbonate ; copoly(carbonate formal) ; phase-transfer catalyst ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A linear, high molecular weight polyformal is readily synthesized by direct transformation of commercially available polycarbonate. The reaction is best carried out in dibromomethane with 8.0 equiv. of potassium hydroxide pellets in the presence of a phase-transfer catalyst at 90-95°C. A random copoly(carbonate formal) can also be obtained simply by reducing the amount of potassium hydroxide used in the reaction. The molecular weight of the resulting polymer is governed by the starting polycarbonate.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 35 (1997), S. 1095-1104 
    ISSN: 0887-624X
    Keywords: poly(arylene ether sulfone) ; transimidization ; crosslinking ; functionalization ; N-phenyl imides ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A versatile approach for the functionalization of a bisphenolic monomer, 3,8-bis(4-hydroxyphenyl)-N-phenyl-1,2-naphthalimide (1) as well as its corresponding poly(N-phenyl imido aryl ether sulphone) via transimidization reactions with hydrazine monohydrate, aliphatic amines, and an amino acid (11-amino undecanoic acid) is reported. The reactions proceeded in high conversion and high isolated yield to the desired novel functionalized monomers or polymers with N-amino, N-aliphatic, and N-aliphatic acid pendant groups. The N-amino functionalized monomer, 2, was reacted cleanly with naphthalic anhydride to form a bisimide. Polymers with phthalimide (7), 3-carboxy phthalimide (9), and bisphenol-A-(monoimide monoanhydride) (8) pendant groups were also formed by imidization of 6. A polymer with a cyclopropyl amide functional group, 10, was formed by reacting 6 with cyclopropyl carbonyl chloride. A brief description of the transimidization reactions and the properties of the functionalized polymers is included. © 1997 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 35: 1095-1108, 1997
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 7 (1969), S. 691-705 
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Poly(2,6-dimethyl-1,4-phenylene ether) (I) was metalated with butyllithium in tetrahydrofuran and with the N,N,N′,N′-tetramethylethylenediamine complex of butyllithium in a variety of solvents. In these cases, metalation occurred at both the ring and side chain positions, the former being preferred initially. Subsequently, there was an isomerization in favor of the side chain.At 25°C, there is no significant amount of polymer scission or crosslinking during metalation, but some crosslinking occurs on derivatizing with dimethyl sulfate and trimethylchlorosilane for high extents of ring metalation. With sodium and potassium alkyls, only side-chain metalation was observed. The metalated polymer reacts as a typical organometallic, allowing polymer modification by a wide variety of reactions.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 8 (1970), S. 1022-1023 
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...