Original scientific paper

The Cationic Grafting of Styrene onto Poly(4-chloromethyl- styrene-co-butadiene)

Z. Janović ; Research Institute, INA, Zagreb, Croatia, Yugoslavia
K. Sarić ; Research Institute, INA, Zagreb, Croatia, Yugoslavia

Abstract

The graft co,polymerization of styrene onto poly(4-chloromethylstyrene-
co-butadiene) with diethylaluminium chloride or
stannic chloride as cationic coinitiators was studied in 1,2-dichloroethane or cyclohexane solutions. The backbone polymer was prepared by polymerization of butadiene and 4-chloromethylstyrene
in emulsion using K2S208 as an initiator. Copolymers containing
different amounts of chlorine were obta,ined by changing the ratio
of monomers in the monomer mixture.
The grafting percentage and grafting efficiency generaly
increased by increasing chlorine content in the backbone polymer.
· Under described conditions, Et2A1Cl gave higher grafting efficiency
in comparison with the results obtained when SnC14 was used as
a coinitiator.

Keywords

Hrčak ID:

196490

URI

https://hrcak.srce.hr/196490

Publication date:

20.2.1976.

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