文献类型：期刊文献

英文题名：Synthesis and Surface Properties of Low Surface Free Energy Silane-Functional Polybenzoxazine Films

作者：Liu, Juan[1];Lu, Xin[1];Xin, Zhong[1];Zhou, Changlu[1]

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

年份：2013

卷号：29

期号：1

起止页码：411

外文期刊名：LANGMUIR

收录：;EI(收录号：20130315905892);WOS:【SCI-EXPANDED(收录号:WOS:000313305900049)】；

基金：This research was financially supported by the Fundamental Research Funds for the Central Universities, the Nanotech Foundation of Science and Technology Commission of Shanghai Municipality (Grant 0652 nm001), and by the National Natural Science Funds of China (Grant u1162110)

语种：英文

外文关键词：Acetal resins - Free energy - Thermogravimetric analysis - Fourier transform infrared spectroscopy - Curing - Hydrogen bonds

摘要：A series of low surface free energy silane-functional polybenzoxazine films were prepared from alkylphenol, paraformaldehyde, and 3-aminopropyltrimethoxysilane (3-APTMOS) using a facile one-step thermal curing method. The chemical structures of these benzoxazine monomers were confirmed by FTIR and H-1 NMR. The surface properties of the series of polybenzoxazine films were proved through contact angle measurement, and the lowest surface energy of these films was 14.91 mJ/m(2). Moreover, the hydrogen bond network of the polybenzoxazine systems was studied using the FTIR spectra. The result showed that the intramolecular hydrogen bonding transformed into intermolecular hydrogen bonding with increasing curing time. Based on these findings, the transformation mechanism between the intermolecular and intramolecular hydrogen bonding during the progress of curing was proposed. The thermogravimetric analysis (TGA) results indicated that the silane-functional polybenzoxazine, with a high char yield of 57.01%, possessed excellent thermal stability.