## SYNOPSIS X-ray photoelectron spectroscopy is used to study the surface segregation of siloxane in blends of poly(viny1 chloride) with siloxane-urethane-ethyleneoxide oligomers. At high concentrations of the oligomeric additive, the surface segregation of siloxane in the blends strongly depends
Surface behavior of blends of siloxane and siloxane-containing copolymers in poly(vinyl chloride)
β Scribed by M. M. Gorelova; A. J. Pertsin; V. Yu. Levin; L. I. Makarova; L. V. Filimonova
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 293 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0021-8995
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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