作者: Wu Gwo-Wen , Hsiue Ging-Ho , Yang Jin-Sheng
DOI: 10.1016/0254-0584(94)90127-9
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摘要: The stress relaxation properties of low epoxidized poly (styrene-b-butadiene-b-styrene)(ESBS) triblock copolymers were investigated in this study via the stress-relaxation technique. The relaxation of the ESBS copolymers depend on the temperature and oxirane content. ESBS copolymers at low oxirane contents do not completely obey the common rule that the relaxation rate decreases with increasing epoxidization. ESBS with 1.9% oxirane has the largest relaxation rate constant. The relaxation activation energies of the ESBS …