スチレン-アクリロニトリル共重合体の伸長特性
1977 年 5 巻 2 号 p. 83-88
詳細
1977 年 5 巻 2 号 p. 83-88
The extensional properties were measured for three styrene-acrylonitrile copolymers having different molecular weights at extension rates ranging from 0.5 to 50cm/min and at temperatures ranging from 132.8 to 184.5°C. Stress and strain at failure point, σf, and γf, time required for the specimen to reach its failure point, tf, and tensile modulus E(t) were determined and compared with those for the narrow-distribution polystyrenes. Dependence of these quantities on molecular weight was also discussed.
