Two-Dimensional (2D) ATR-FTIR Spectroscopic Study on Glycol Diffusion in Cured Epoxy Resins

Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (17): 1641-1644. Previous Articles Next Articles

二维红外相关分析对乙二醇在邻甲酚环氧体系中的扩散过程的研究

李唯真, 武培怡, 李善君, 杨玉良

复旦大学高分子科学系, 聚合物分子工程教育部重点实验室, 上海, 200433

投稿日期:2003-12-23 修回日期:2004-05-13 发布日期:2014-02-17
通讯作者: peiyiwu@fudan.edu.cn
作者简介:武培怡E-mail:peiyiwu@fudan.edu.cn
基金资助:
国家自然科学基金(Nos.20274010,50103003,20221402)资助项目.

Two-Dimensional (2D) ATR-FTIR Spectroscopic Study on Glycol Diffusion in Cured Epoxy Resins

LI Wei-Zhen, WU Pei-Yi, LI Shan-Jun, YANG Yu-Liang

Department of Macromolecular Science, Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Fudan University, Shanghai 200433

Received:2003-12-23 Revised:2004-05-13 Published:2014-02-17

Abstract

A novel experimental approach, based on time-resolved two-dimensional (2D) ATR-FTIR spectroscopy has been used to study glycol diffusion behavior of EPP, which is novolac epoxy resins cured with novolac phenylacetate resin.The splitting of the glycol OH vibration band at 3700～3000 cm^-1 in 2D-IR spectra shows that there are two different states of glycol hydroxyls with hydrophilic groups of epoxy networks during diffusion.One concerns a weak hydrogen-bonding, while the other a strong hydrogen-bonding.The weak hydrogen-bonding glycol is easier to diffuse into the epoxy resins than the strong one.The diffusion coefficient can be estimated by a nonlinear curve fitting to Fickian diffusion equation.

Key words: epoxy resin, glycol, 2D-FTIR, ATR

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LI Wei-Zhen, WU Pei-Yi, LI Shan-Jun, YANG Yu-Liang. Two-Dimensional (2D) ATR-FTIR Spectroscopic Study on Glycol Diffusion in Cured Epoxy Resins[J]. Acta Chimica Sinica, 2004, 62(17): 1641-1644.

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二维红外相关分析对乙二醇在邻甲酚环氧体系中的扩散过程的研究

Two-Dimensional (2D) ATR-FTIR Spectroscopic Study on Glycol Diffusion in Cured Epoxy Resins

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