文献类型：期刊文献

英文题名：Surface properties and hydrogen bonds of mono-functional polybenzoxazines with different N-substituents

作者：Liu, Juan[1];Lu, Xin[1];Xin, Zhong[1];Zhou, Chang-lu[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：34

期号：8

起止页码：919

外文期刊名：CHINESE JOURNAL OF POLYMER SCIENCE

收录：;EI(收录号：20212810632234);WOS:【SCI-EXPANDED(收录号:WOS:000379172700001)】；

基金：This work was financially supported by the Nanotech Foundation of Science and Technology Commission of Shanghai Municipality (No. 0652nm001), the National Natural Science Fundation of China (No. u1162110), the Fundamental Research Funds for the Central Universities (No. WA1514015), and China Postdoctoral Science Foundation (No. 2015M571509).

语种：英文

外文关键词：Polybenzoxazine; Mono-functional; N-substituents; Surface free energy; Hydrogen bonding

摘要：A series of mono-functional benzoxazine monomers with different N-substituents were synthesized from phenol, formaldehyde, and various amines (ammonia, methylamine, n-butylamine, dodecylamine), named P-am, P-m, P-b, and P-da, respectively. The surface properties of these polybenzoxazine films were proven by contact angle measurements. The hydrogen bond network of the polybenzoxazine systems was studied using the FTIR spectra. And the results showed that the surface free energy increased with increasing the fraction of intermolecular hydrogen bonding when the N-substituent was an alkyl chain. However, the rule was not suitable when the N-substituent was H. That was because there was one more kind of intramolecular hydrogen bond in the poly(P-am). Based on these findings, we proposed that both the N-substituent alkyl group and the fraction of intermolecular hydrogen bonding had effects on the surface free energy.