PREPARATION OF BLOCK-COPOLYMERS WITH MACROAZONITRILES AS THE INITIATOR

Date

1993-12-01

Author

YURUK, H
ULUPINAR, S

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Block copolymers containing poly(ethylene oxide) or poly(propylene oxide) prepolymer segments and methyl methacrylate were prepared. A stepwise procedure was first employed to prepare macro-azocarbamates by capping hydroxy-terminated poly(ethylene oxide) or poly(propylene oxide) with 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate and subsequently reacting this intermediate with 4,4'-azobis(4-cyano-n-pentanol)**. The resulting polymeric azocarbamates were used as free-radical initiators for the polymerization of methyl methacrylate. Various modes of preparation and the properties of the copolymers are described. Formation of block copolymers is illustrated by several analyses and measurements of elastic modulus versus temperature.

Subject Keywords

General Materials Science

URI

https://hdl.handle.net/11511/65984

Journal

ANGEWANDTE MAKROMOLEKULARE CHEMIE

DOI

https://doi.org/10.1002/apmc.1993.052130117

Collections

Department of Chemistry, Article

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Citation Formats

H. YURUK and S. ULUPINAR, “PREPARATION OF BLOCK-COPOLYMERS WITH MACROAZONITRILES AS THE INITIATOR,” ANGEWANDTE MAKROMOLEKULARE CHEMIE, pp. 197–206, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65984.