A qualitative criterion proving the participation of comonomer complexes in the chain propagation of radical copolymerization

✍ Scribed by Georgiev, Georgi S.; Christov, Latchezar K.; Koseva, Nely S.; Kamenska, Elena B.; Vasileva, Elena D.

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 192 KB
• Volume: 45
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/(sici)1097-0126(199804)45:4<366::aid-pi945>3.0.co;2-7

✦ Synopsis

The juxtaposition of the equations for copolymer composition for chain propagation following the terminal (T), penultimate (P) and complex (C) mechanisms shows that the copolymer composition depends on the total comonomer concentration only when a comonomer complex participates in the propagation. This makes it possible to deÐne an easily applicable criterion proving comonomer complex participation yet not excluding propagation according to the T and P mechanisms. The criterion has been tested for the copolymerization of 1-vinyl-2-pyrrolidone with acrylic and methacrylic acids, and of styrene with maleic anhydride. It has been shown that such a dependence cannot be claimed for styreneÈmethyl methacrylate copolymerization.

1998 SCI.