Diblock copolymers and process of preparing same

Details Diblock copolymers and process of preparing same Diblock copolymers and process of preparing same

1975-06-19

1976-11-30

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260886, C08L 5300, C08L 2500

Patent

active

039949931

ABSTRACT:
Diblock copolymers, such as poly(styrene-b-isobutylene) are produced by carbenium ion mechanism, for example, isobutylene polymerization is initiated with a polystyrene molecule containing terminal tertiary bromine, and, diethylaluminum chloride as coinitiator. The resulting block copolymer can be recovered by selective extraction.

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Morton et al., Homogeneous Anionic Polyermization, J. P. Science, vol. A1, (1963), pp. 443-482.
Kennedy; J. P. "Cationic Polymerization of Olefins: A Critical Inventory," John Wiley Interscience, (1975).

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