文献类型：期刊文献

英文题名：Effect of N-substituents on the surface characteristics and hydrogen bonding network of polybenzoxazines

作者：Dong, Huijie[1];Xin, Zhong[1];Lu, Xin[1];Lv, Yuhao[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：52

期号：4

起止页码：1092

外文期刊名：POLYMER

收录：;EI(收录号：20110713660735);WOS:【SCI-EXPANDED(收录号:WOS:000287466900024)】；

基金：This study was funded by the Nano-tech Foundation of Science and Technology Commission of Shanghai Municipality (Grant number: 0652nm001). The authors would like to thank Chih-Feng Wang of I-Shou University and professor Feng-Chih Chang of the Department of Applied Chemistry, National Chiao-Tung University in Taiwan, for their helpful discussion.

语种：英文

外文关键词：Polybenzoxazine; Surface energy; Hydrogen bonding

摘要：In our study, the effect of N-substituents on the surface free energy and hydrogen bonding network structure of polybenzoxazine has been studied systematically. The contact angle measurement results show the surface energies of the polybenzoxazines decrease with the increase of alkyl chain length, and are not affected by the steric factor of the tert-butyl group. However, the FTIR curve fitting results show that both the chain length and bulkiness of alkyl group have an effect on the hydrogen bonding network of the polybenzoxazines, and facilitate the formation of intermolecular hydrogen bonding during the progress of cure. This indicates that both alkyl group and the fraction of intermolecular hydrogen bonding have an effect on the surface energy of the polybenzoxazines. Additionally, the transformation mechanism of the intermolecular and intramolecular hydrogen bonding during the progress of cure is proposed for the first time. (C) 2011 Elsevier Ltd. All rights reserved.