Characteristics of thermotropic copolymer films cast from solution
β Scribed by R. J. Spontak
- Book ID
- 104910824
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 301 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0261-8028
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π SIMILAR VOLUMES
## Abstract Three types of domain structures, namely spherical, rodlike, and lamellar, of AβB and AβBβA (or BβAβB) block copolymers cast from solutions are discussed on the basis of a criterion that the structures originate at a critical micelle concentration as a result of microphase separation of
Films of block eopolymers of polystyrene + isoprene, cast from cyciohexane at temperatures above and below a conformational transition temperature (Tp) derived from the plot of ['/l vs. T, have been examined for glass transition temperatures. In every case, two glass transitions were found, Twl (pol