通过原子转移自由基聚合（ATRP）和铜催化的叠氮化物-炔烃点击化学相结合的方法合成聚苯乙烯和聚（4-乙烯基吡啶）混合接枝二氧化硅纳米颗粒
Synthesis of Polystyrene and Poly(4-vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and Cu -Catalyzed Azide-Alkyne Click Chemistry.
作者信息
Wu Lei, Glebe Ulrich, Böker Alexander
机构信息
Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476, Potsdam-Golm, Germany.
Lehrstuhl für Makromolekulare Materialien und Oberflächen, RWTH Aachen University, Forckenbeckstr. 50, 52056, Aachen, Germany.
出版信息
Macromol Rapid Commun. 2017 Jan;38(1). doi: 10.1002/marc.201600475. Epub 2016 Oct 13.
Binary polystyrene and poly(4-vinylpyridine) mixed grafted silica nanoparticles (PSt/P4VP-g-SNPs) are fabricated using Cu -catalyzed azide-alkyne Huisgen cycloaddition (CuAAC) via grafting-to method. Azide-terminated PSt and P4VP are synthesized via post- and pre-atom transfer radical polymerization modification, respectively. Then, the polymers are simultaneously anchored onto alkyne-modified SNPs by CuAAC yielding mixed brushes as shown by Raman spectroscopy, dynamic light scattering, and thermogravimetric analysis. To the best of our knowledge, this is the first report of simultaneously grafting two distinct polymer chains to synthesize mixed grafted silica nanoparticles using CuAAC technique via grafting-to method.
通过接枝法利用铜催化的叠氮化物-炔烃惠斯根环加成反应（CuAAC）制备了二元聚苯乙烯和聚（4-乙烯基吡啶）混合接枝二氧化硅纳米粒子（PSt/P4VP-g-SNPs）。分别通过后原子转移自由基聚合修饰和前原子转移自由基聚合修饰合成了叠氮端基的PSt和P4VP。然后，通过CuAAC将聚合物同时锚定在炔烃修饰的SNPs上，拉曼光谱、动态光散射和热重分析表明生成了混合刷。据我们所知，这是首次报道通过接枝法利用CuAAC技术同时接枝两条不同的聚合物链来合成混合接枝二氧化硅纳米粒子。
Zotero 插件