ABA-type block copolymers containing segments of poly(dimethyl siloxane) and poly(vinyl pyrrolidinone) were synthesized. Dihydroxyl-terminated poly(dimethyl siloxane) was reacted with isophorone diisocyanate and then with t-butyl hydroperoxide to obtain macroinitiators having siloxane units. The per
Synthesis and characterization of multiblock copolymers containing poly(dimethyl siloxane) blocks
✍ Scribed by Philippe Chaumont; Gérard Beinert; Jean Herz; Paul Rempp
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 411 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0032-3861
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Novel poly(oxyethylene)/poly(caprolactone) POE/PCL copolymers were synthesized by step growth polymerization of poly(e-caprolactone) diols and poly(ethylene glycol) diacids using dicyclohexylcarbodiimide as coupling agent. The reaction was performed at room temperature and yielded multiblock copolym