Shi Yunfeng, Liu Lixin, Zhang Fengyue, Niu Mengyuan, Zhao Yanzhu, Fan Yifan, Liang Yanping, Liu Mei, Zhang Zhenzhu, Wang Junjie
School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China.
Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, China.
Polymers (Basel). 2017 Sep 19;9(9):459. doi: 10.3390/polym9090459.
With a hyperbranched poly(amidoamine) core and many water-soluble poly(ethylene glycol) monomethyl ether arms connected by pH-sensitive acylhydrazone bonds, multiarm hyperbranched polymer was used as nanoreactor and reductant to prepare metal nanoparticles endowed with intelligence and biocompatibility. The multiarm hyperbranched polymer encapsulated nanoparticles (NPs) showed excellent catalytic activity for hydrogenation, thus an excellent catalyst system for hydrogenation was established. The rate constants could reach as high as 3.48 L·s·m, which can be attributed to the lack of surface passivation afforded by the multiarm hyperbranched polymer.
具有超支化聚（酰胺胺）核以及通过pH敏感的腙键连接的多个水溶性聚（乙二醇）单甲醚臂的多臂超支化聚合物被用作纳米反应器和还原剂，以制备具有智能性和生物相容性的金属纳米颗粒。多臂超支化聚合物包裹的纳米颗粒（NPs）对氢化显示出优异的催化活性，从而建立了一种优异的氢化催化体系。速率常数可高达3.48 L·s·m，这可归因于多臂超支化聚合物提供的表面钝化的缺乏。
