华东理工大学学报:自然科学版2011,Vol.37Issue(6):659-667,9.
聚苯并嗯嗪材料PB-m和PB—a的制备及其表面性能
Preparation of PB-m and PB-a Polybenzoxazine Films and Their Surface Properties
摘要
Abstract
Benzoxazine monomers with methyl group (B-m) and benzyl group (B-a) in bisphenol A backbone were synthesized. The effects of curing temperature and curing time on the surface free energy of the polybenzoxazines film were investigated. The film formation property and thermal stability of polybenzoxazines were also studied. The lowest surface free energies of the polybenzoxazines films (16.0 and 16.6 mJ/m2) are obtained by curing B-m and B-a at 210 ℃ for 1 h, which are even lower than that of Teflon (22.0 rnJ/mZ). The root-mean-square roughness of PB-m and PB-a polybenzoxazine films were 0.4 nm and 0.2 nm, respectively. Temperatures at 5% weight loss for the PB-m and PB-a are 279℃and 335 ℃, respectively. The thermal stability of PB-a polybenzoxazine is better than that of PB-m.关键词
聚苯并嗯嗪/制备/表面性能/热稳定性/表面自由能Key words
polybenzoxazine/preparation/surface properties/thermal stability/surface free energy分类
化学化工引用本文复制引用
曲丽,周长路,辛忠..聚苯并嗯嗪材料PB-m和PB—a的制备及其表面性能[J].华东理工大学学报:自然科学版,2011,37(6):659-667,9.基金项目
上海市科委纳米技术专项资助课题 ()