摘要
采用共络合法制备了部分季铵化的第五代聚酰胺胺树状聚合物封装的RuRh双金属纳米粒子(DENs)催化剂,分别利用紫外-可见光谱、光散射分析和透射电镜表征了该树状聚合物封装的RuRh双金属纳米粒子的形成、粒径及其分布.红外光谱和核磁共振谱分析表明,RuRh双金属DENs催化剂对聚(甲基氢硅氧烷)的硅氢化改性显示了较高的催化活性和良好的区域选择性.
Partially quaternized fifth-generation poly (amidoamine) nanoparticles(DENs) were prepared via CO-complexation method. and distribution of RuRh bimetallic nanoparticles were investigated dendrimer-encapsulated RuRh bimetallic The formation of DENs, the particle size by UV-Vis absorption spectroscopy, laser scattering analysis, and TEM. The results of FTIR and NMR spectroanalyses show that a high efficiency of regioselective hydrosilation modification of poly (methylhydrosiloxane) is achieved with the RuRh bimetallic DENs catalysts.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第4期813-817,共5页
Chemical Journal of Chinese Universities
基金
广东省科技计划项目(批准号:B40502)
加拿大自然科学与工程研究基金会和创新基金会资助