马来酰亚胺
氢键
分子内力
共聚物
玻璃化转变
分子动力学
分子间力
高分子化学
化学
材料科学
化学物理
结晶学
分子
计算化学
聚合物
立体化学
有机化学
作者
Qianhao Zhou,Ming Li,Po Yang,Yi Gu
标识
DOI:10.1002/mats.201200057
摘要
Abstract The objective of this paper is to use molecular dynamics (MD) simulation to study the influence of hydrogen bonding on the structure and glass transition temperature (Tg) of maleimide–isobutene alternating copolymers (poly(RMI‐alt‐IB)), a promising material used in the optoelectronics industry. The Tg obtained by MD simulation shows that the incorporation of hydrogen bonding increased the Tg for 48 K. The static and dynamic properties of poly(RMI‐alt‐IB)s are examined in this study. All the results prove that intermolecular CO…HO is the main hydrogen bond in the copolymers, while negligible intramolecular hydrogen bonding is observed. The segmental mobility and chain mobility are decreased because of the existance of the hydrogen bonds. magnified image
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