高等学校化学学报2016，Vol.37Issue(8)：1509-1520,12.DOI:10.7503/cjcu20160084
负载金纳米粒子的聚苯乙烯/聚丙烯酸微球的合成及pH响应性能
Synthesis of the Supported Au Polystyrene/poly(acrylic acid) Composite Microspheres and Their pH Regulated Performance†
摘要
Abstract
The core-shell polystyrene( PS)/poly( acrylic acid) ( PAA) composite microgels with pH sensitivity were synthesized via two-step polymerization method. Au nanoparticles were supported onto pH sensitivity composite microgels via in situ reduction of chloroauric acid ( HAuCl4 ) using NaBH4 as reduction agent and sodium citrate as stabilizer. The results demonstrated that the plasmonic coupling of gold nanoparticles could be regulated, and the diffusion of reactive substrates availably controlled, due to the shrinkage and swelling performance of the shell chains under the different acid and alkali conditions. The optical property and catalytic activity of Au NPs could be regulated by changing the micro-environment of composite microgels. Therefore, the performance of composite materials could be realized the pH-controllable.关键词
高分子微凝胶/pH敏感性/纳米金/表面等离子共振/载体催化剂Key words
Polymer microgel/pH sensitivity/Au nanoparticle/Localized surface plasmon resonance ( LSPR)/Supported catalyst分类
化学化工引用本文复制引用
滕小波,张春霞,张颖..负载金纳米粒子的聚苯乙烯/聚丙烯酸微球的合成及pH响应性能[J].高等学校化学学报,2016,37(8):1509-1520,12.基金项目
国家自然科学基金(批准号:21173141)、陕西省工业攻关项目(批准号:2011K08-14)和教育部长江学者和创新团队发展计划(批准号:IRT-14R33)资助.? Supported by the National Natural Science Foundation of China(No.21173141), the Key Industry Project of Shaanxi Province of China (No.2011K08-14) and the Changjiang Scholars and Innovative Research Team in University of China(No. IRT-14R33) （批准号:21173141）
