Acrylonitrile–4-vinylpyridine copolymers effect of comonomer sequence distribution on properties

✍ Scribed by Harris, Stephen H. ;Gilbert, Richard D.

• Book ID: 105333932
• Publisher: John Wiley and Sons
• Year: 1982
• Weight: 660 KB
• Volume: 20
• Category: Article
• ISSN: 0360-6376
• DOI: 10.1002/pol.1982.170200701

✦ Synopsis

Abstract

Acrylonitrile–,4‐vinylpyridine copolymers were prepared in chloroform solution at 60°C with AIBN as initiator. Copolymer compositions were determined from their 15.01‐MHz ^13^C‐NMR spectra. Reactivity ratios of r~AN~ = 0.093 and r~4VP~ = 0.32 were calculated by the Kelen and Tudos method. The run number, number‐average sequence lengths, and monomer sequence distributions were also calculated. The T~g~ values of the copolymers, their dye uptake, and degree of alkaline hydrolysis were influenced by the overall copolymer composition but particularly by the monomer sequence distribution in the copolymers.