Dendritic polyesters bearing COOH groups at the focal points were grafted onto nanometer silica premodified with 3-aminopropyltriethoxysilane by N,N′-dicyclohexylcarbodiimide mediated amidation. The products were cha...Dendritic polyesters bearing COOH groups at the focal points were grafted onto nanometer silica premodified with 3-aminopropyltriethoxysilane by N,N′-dicyclohexylcarbodiimide mediated amidation. The products were characterized qualitatively by FTIR, TGA and elemental analysis. It was shown that a significant grafting （10%15% net grafting for this reaction） was obtained despite the steric hindrance of the dendrons.展开更多
文摘Dendritic polyesters bearing COOH groups at the focal points were grafted onto nanometer silica premodified with 3-aminopropyltriethoxysilane by N,N′-dicyclohexylcarbodiimide mediated amidation. The products were characterized qualitatively by FTIR, TGA and elemental analysis. It was shown that a significant grafting （10%15% net grafting for this reaction） was obtained despite the steric hindrance of the dendrons.
基金国家自然科学基金(21878026)工信部环保安全技术服务平台项目(2020-0107-3-1)+3 种基金2021年江苏省科技副总项目(FZ20211438)2021年江苏省研究生工作站项目(2021-187)常州市重点研发计划(CE20205051)Natural Science Foundation of Jiangsu Education Departement(1020220949)。
