Preparation and characterization of poly(trifluoropropylmethyl)siloxane-block-polyurethane-urea elastomers
β Scribed by Zhendong Shi
- Book ID
- 120895970
- Publisher
- Springer US
- Year
- 2013
- Tongue
- English
- Weight
- 651 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1935-3804
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## Abstract The melt blending of polylactide (PLA) and thermoplastic polyurethane (TPU) elastomer was performed in an effort to toughen the PLA. The phase morphology, mechanical properties, and toughening mechanism of the PLA/TPU blends were investigated. The results indicate that the spherical TPU
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