高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (4): 813-817.

• 研究论文 • 上一篇    下一篇

季铵化聚酰胺胺树状聚合物封装的RuRh双金属DENs催化聚(甲基氢硅氧烷)区域选择性改性研究

彭晓宏1, 潘勤敏2,3, Garry L. Rempel3, 彭晓春1   

    1. 华南理工大学材料科学与工程学院, 广州 510640;
    2. 苏州大学材料与化学化工学部, 苏州 215123;
    3. 加拿大滑铁卢大学化工系, 滑铁卢 N2L3G1
  • 收稿日期:2008-08-13 出版日期:2009-04-10 发布日期:2009-04-10
  • 通讯作者: 彭晓宏, E-mail:pxhpf@scut.edu.cn; 潘勤敏, E-mail:qpan@suda.edu.cn; qpan@cape.uwaterloo.ca
  • 基金资助:

    广东省科技计划项目(批准号: B40502)和加拿大自然科学与多种研究基金会和创新基金会资助.

Studies on Regioselective Catalyzed Modification of Poly(methylhydrosiloxane) Using Quaternized Poly(amidoamine) Dendrimer-Encapsulated RuRh Bimetallic Nanoparticles

PENG Xiao-Hong1*, PAN Qin-Min2,3*, Garry L. Rempel3, PENG Xiao-Chun1   

    1. Department of Polymer Science and Engineering, South China University of Technology, Guangzhou 510640, China;
    2. College of Materials Science, Chemistry and Chemical Engineering, Soochow University, Suzhou 215123, China;
    3. Department of Chemical Engineering, University of Waterloo, Waterloo N2L3G1, Canada
  • Received:2008-08-13 Online:2009-04-10 Published:2009-04-10
  • Contact: PENG Xiao-Hong, E-mail:pxhpf@scut.edu.cn; PAN Qin-Min, E-mail:qpan@suda.edu.cn; qpan@cape.uwaterloo.ca

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.

关键词: 季铵化聚酰胺胺树状聚合物, RuRh双金属纳米粒子, 聚(甲基氢硅氧烷), 区域选择性催化改性

Abstract:

Partially quaternized fifth-generation poly(amidoamine) dendrimer-encapsulated RuRh bimetallic nanoparticles(DENs) were prepared via co-complexation method. The formation of DENs, the particle size and distribution of RuRh bimetallic nanoparticles were investigated 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.

Key words: Quaternized poly(amidoamine) dendrimer, RuRh bimetallic nanoparticle, Poly(methylhydrosiloxane), Regioselective catalyzed modification