文献类型：期刊文献

英文题名：Preparation of Bio-Based Polybenzoxazine/Pyrogallol/Polyhedral Oligomeric Silsesquioxane Nanocomposites: Low Dielectric Constant and Low Curing Temperature

作者：Zhao, Yudi[1];Yuan, Manlin[1];Wang, Litong[1];Lu, Xin[1];Xin, Zhong[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Dept Product Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：307

期号：3

外文期刊名：MACROMOLECULAR MATERIALS AND ENGINEERING

收录：;EI(收录号：20215011322780);WOS:【SCI-EXPANDED(收录号:WOS:000729033300001)】；

基金：This work was financially supported by National Natural Science Foundation of China (21776080), Innovation Program of Shanghai Municipal Education Commission (2019-01-07-00-02-E00061), and Shanghai Municipal Science and Technology Commission (21520761100).

语种：英文

外文关键词：bio-based benzoxazine; curing temperature; dielectric properties; nanocomposites; polyhedral oligomeric silsesquioxane

摘要：In this work, a bio-based benzoxazine monomer (C-s) is synthesized from cardanol, stearylamine, and paraformaldehyde through solvent-free method. Pyrogallol is used as a curing catalyst for the ring-opening polymerization of benzoxazine. Differential scanning calorimeter (DSC) results reveal that doping with pyrogallol reduces the exothermic peak temperature (T-p) of C-s from 256 to 174 degrees C. The polybenzoxazine/pyrogallol/polyhedral oligomeric silsesquioxane (PC-s/py/POSS) nanocomposites are prepared via thermal curing. The doping of aminopropyl isobutyl POSS (POSS-NH2) can reduce the dielectric constant of polybenzoxazine. The dielectric constant of PC-s/py/POSS is 2.64 at 1 MHz when the doping amount of POSS-NH2 is 10 wt%. The results of thermogravimetric analysis (TGA) and water absorption test indicate that the PC-s/py/POSS nanocomposites possess good thermal stability and water resistance. In summary, the PC-s/py/POSS nanocomposites with low curing temperature and low dielectric constant are expected to be applied to the low dielectric materials for microelectronic applications.