共聚物
低聚物
溶剂
高分子化学
材料科学
玻璃化转变
苯乙烯
极限抗拉强度
单体
复合材料
聚合物
化学
有机化学
作者
Zhen Wang,Pengyang Deng,Lianxun Gao,Mengxian Ding
摘要
Abstract An oligomer from 4, 4′‐bis(maleimido)diphenyl methane and methylenedianiline were dissolved in active solvent N, N ‐dimethyl acrylamide in a solid content up to 50–70%; the solution was poured in a sheet‐shaped module and irradiated by 60 Co with the dose from 20 to 350 kGy at room temperature. The polymerized sheet was postcured at 180°C to obtain a transparent red‐orange sheet with tensile strength above 100 MPa. The glass transition temperature before and after postcuring was around 100°C and 150–180°C, respectively. Styrene was used along with DMAA to decrease the water absorption for the copolymers. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 2879–2882, 2004
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