Head-to-head vinyl chloride–vinyl acetate copolymer

✍ Scribed by Y. Tarshiani; M. P. Dreyfuss

• Book ID: 105337431
• Publisher: John Wiley and Sons
• Year: 1990
• Tongue: English
• Weight: 978 KB
• Volume: 28
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/pola.1990.080280115

✦ Synopsis

Abstract

Addition chlorination of cis‐1,4‐polybutadiene in the presence of acetic acid as a cosolvent resulted in the formation of head‐to‐head vinyl chloride–vinyl acetate copolymer. Chlorine analysis, IR, and NMR spectra of the chlorinated polybutadiene indicated that reaction was primarily double bond addition; there was little evidence for substitutive chlorination. Acetate was incorporated by nucleophilic participation of the acetic acid cosolvent. The extent of incorporation of the acetate group in the polymer chain was a function of the acetic acid concentration. Both the glass transition temperatures and the densities of the chloroacetylated polymers decreased as the degree of acetylation increased.