SYNTHESIS OF LIVING POLYVINYLPYRIDINE CHA INS WITH CHROMIUM COUNTERIONS AND THEIR USE FOR POLYMERIZATION OF ACRYLONITRILE

Authors
FEDOROVA LA KLENIN SI SHIBAEV LA DYAKONOVA NV TARABUKINA EB STEPANOV NG ERUSALIMSKII BL
Citation
La. Fedorova et al., SYNTHESIS OF LIVING POLYVINYLPYRIDINE CHA INS WITH CHROMIUM COUNTERIONS AND THEIR USE FOR POLYMERIZATION OF ACRYLONITRILE, Vysokomolekularnye soedinenia. Seria A, 36(3), 1994, pp. 373-377
Citations number
3
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
36
Issue
3
Year of publication
1994
Pages
373 - 377
Database
ISI
SICI code
0507-5475(1994)36:3<373:SOLPCI>2.0.ZU;2-Z
Abstract
Molecular and structural characteristics of 2- and 4-vinylpyridine pol ymers prepared with tris(pi-allyl)chromium in THF at 65-degrees-C are compared. The parameters of these polymers indicate that the polymeriz ation processes are characterized by various reactions which give rise to the branched macromolecules having multimodal molecular mass distr ibution. In the case of poly(2-vinylpyridine) these peculiarities are revealed to a greater extent. The same reactions lead to the formation of multisite living chains which initiate polymerization of acrylonit rile to form branched hybrid polymers.