INTERACTION BETWEEN TETRACYANOETHYLENE AND HEXAMETHYLBENZENE IN POLYPROPYLENE - EFFECT OF POLYMER MEDIUM

Citation
P. Bruni et al., INTERACTION BETWEEN TETRACYANOETHYLENE AND HEXAMETHYLBENZENE IN POLYPROPYLENE - EFFECT OF POLYMER MEDIUM, Polymer degradation and stability, 46(2), 1994, pp. 151-158
Citations number
30
Categorie Soggetti
Polymer Sciences
ISSN journal
01413910
Volume
46
Issue
2
Year of publication
1994
Pages
151 - 158
Database
ISI
SICI code
0141-3910(1994)46:2<151:IBTAHI>2.0.ZU;2-Q
Abstract
The formation of a charge-transfer complex between tetracyanoethylene (TCNE) and hexamethylbenzene (HMB) in isotactic polypropylene (PP) has been studied by using UV-VIS spectroscopy. The effective equilibrium constant of complex formation (K-e) increases with the concentration o f TCNE or HMB in the polymer. Hexadecane affects the K-e in PP, while it has no influence on the complex in solution. The theory of non-unif orm additives distribution in the polymer medium and the reactivity ar e discussed.