二维衰减全反射红外光谱研究水在聚酰亚胺/二氧化硅纳米高分子复合膜中的吸附扩散行为

来源 :化学物理学报 | 被引量 : 0次 | 上传用户：ASD121406113

【摘要】

：

考虑到基于聚酰亚胺衍生物的电子器件的稳定性和性能,运用二维衰减全反射红外相关光谱研究了水在聚酰亚胺衍生物:poly(4'4-oxydiphenylene pyromellitimide)和二氧化硅的纳米

【作者】

：

沈怡王海涛钟伟武培怡

【机构】

：

复旦大学高分子科学系

【出处】

：

化学物理学报

【发表日期】

：

2004年期

【关键词】

：

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考虑到基于聚酰亚胺衍生物的电子器件的稳定性和性能,运用二维衰减全反射红外相关光谱研究了水在聚酰亚胺衍生物:poly(4'4-oxydiphenylene pyromellitimide)和二氧化硅的纳米高分子复合膜中的动态吸附和扩散行为.二维相关光谱区分出了三种不同氢键强度的水分子状态,同时,氢键的数量和强度还对不同状态水分子的扩散速率起了决定性的作用,和PI聚合物本身以及PI表面残留的硅酸形成氢键的水分子的扩散速度则最慢.

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二维衰减全反射红外光谱研究水在聚酰亚胺/二氧化硅纳米高分子复合膜中的吸附扩散行为

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