Synthesis of epichlorhydrin-styrene block copolymers via cation-to-radical transformation process

Demirbas, A; Cakmak, I

doi:10.1080/10601329608020366

Synthesis of epichlorhydrin-styrene block copolymers via cation-to-radical transformation process

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Demirbas A., Cakmak I.

JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, pp.127-132, 1996 (SCI-Expanded)

Publication Type: Article / Article
Volume:
Publication Date: 1996
Doi Number: 10.1080/10601329608020366
Journal Name: JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.127-132
Karadeniz Technical University Affiliated: No

Abstract

Poly(epichlorhydrin-b-styrene-b-epichlorhydrin) block copolymers were prepared by a two step process via cationic-to-radical transformation in two steps. For this purpose, epichlorhydrin(ECH) was polymerized using HBF4 as catalyst and reacted with the sodium salt of 4,4'-azo-bis(4-cyanopentanoic acid)(ACPA) to yield PECH possessing thermally labile azo group. PECH-macroazoinitiator was then used to initiate the thermal radical block copolymerization of styrene.