Charge transfer in the low-temperature radiolysis of styrene-butadiene block copolymers
- Karpov Institute of Physical Chemistry, Obninsk (Russian Federation)
Radiation-induced conductivity of polystyrene, polybutadiene, and styrene-butadiene block copolymers, resulting from irradiation of the samples with fast electrons of 75 keV energy under vacuum at 100 K, was studied. A negative deviation of the radiation-induced conductivity constant A{sub m} from the corresponding additive values was detected upon varying the composition of block copolymers. It is concluded that the interfacial charge transfer from polystyrene to polybutadiene microdomains occurs in the block copolymers. This conclusion is confirmed by the results of investigations of drift mobility of the charge carriers and effects of donor-acceptor admixtures on the radiation-induced conductivity of the polymers studied.
- OSTI ID:
- 136046
- Journal Information:
- High Energy Chemistry, Journal Name: High Energy Chemistry Journal Issue: 3 Vol. 29; ISSN 0018-1439; ISSN HIECAP
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of copolymer composition on the formation of ionic species, hydrogen evolution, and free-radical reaction in el-irradiated styrene-butadiene random and block copolymers
Effect of casting solvents on the properties of styrene-butadiene-styrene block copolymers studied by positron annihilation techniques. [Temperature effects]