| PET与SAN/PAN复合膜界面的 FTIR-ATR研究 |
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| 引用本文： | 徐立恒,袁昌明,许潮江.PET与SAN/PAN复合膜界面的 FTIR-ATR研究[J].光谱实验室,2004,21(2):229-232. |
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| 作者姓名： | 徐立恒 袁昌明 许潮江 |
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| 作者单位： | 中国计量学院计量技术工程学院,杭州市,310018;浙江省上虞市环境监测站,浙江省,上虞市,312300 |
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| 摘 要： | 应用傅里叶衰减全反射红外光谱(FTIR-ATR)技术对聚对苯二甲酸乙二酯(PET)表面形成不同厚度的超薄苯乙烯-丙烯腈共聚物(SAN)和聚丙烯腈(PAN)的共混物膜及其SAN/PAN共混物膜的厚度、界面层PET亚甲基的构像变化等进行研究,结果表明PET表面共混物膜的厚度随共混物混合液中SAN含量的增加而增加,界面层成膜物质与基材的分子链段间发生了相互渗透和扩散,分子链的极性越相近,越容易成膜.对PET红外光谱吸收峰的A1340/A1410进行定量研究表明,在成膜过程中,PET分子链的亚甲基构像由反式向旁式转变,引起界面层PET的结晶度降低.FTIR-ATR是分析复合膜界面层结构信息的有效方法.
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| 关 键 词： | 傅里叶衰减全反射红外光谱 界面 聚对苯二甲酸乙二酯 |
| 文章编号： | 1004-8138(2004)02-0229-04 |
| 修稿时间： | 2003年8月26日 |
Study on the Interface of PET and SAN/PAN Film by FTIR-ATR |
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| XU Li,Heng,YUAN Chang,Ming.Study on the Interface of PET and SAN/PAN Film by FTIR-ATR[J].Chinese Journal of Spectroscopy Laboratory,2004,21(2):229-232. |
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| Authors: | XU Li Heng YUAN Chang Ming |
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| Abstract: | Attenuatted total reflection infrared spectroscopy (FTIR ATR) was used to study the macromolecular interaction and the conformational change in the interface between the poly(ethylene terephthalate) (PET) and poly(styrene co acrylonitrile) (SAN) and polyacrylonitrile (PAN),the thickness of the SAN/PAN and the ratio between PET in interface and in bulk.The result shows the polymer chains diffuse each other and the depth of film grows with the ratio of SAN to PAN.The conformation of CH 2 group is changed in the interface. |
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| Keywords: | FTIR ATR Interface PET |
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