A Versatile Synthetic Approach to Covalent Binding of Polymer Brushes on CdSe/CdS Quantum Dots Surface: Multitype Modification of Nanocrystals

被引：12

作者：

Guan, Xiaolin ^{[1
,2
,3
]}

Fan, Hongting ^{[1
,2
,3
]}

Jia, Tianming ^{[1
,2
,3
]}

Zhang, Donghai ^{[1
,2
,3
]}

Zhang, Yang ^{[1
,2
,3
]}

Lei, Ziqiang ^{[1
,2
,3
]}

Lai, Shoujun ^{[1
,2
,3
]}

机构：

[1] Minist Educ, Key Lab Ecoenvironm Related Polymer Mat, Lanzhou 730070, Gansu, Peoples R China

[2] Minist Gansu Prov, Key Lab Polymer Mat, Lanzhou 730070, Gansu, Peoples R China

[3] Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2016年 / 217卷 / 05期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

CdSe/CdS-polymers; fluorescence; QDs-azo initiator; versatile approach; RADICAL POLYMERIZATION; ORDERED ARRAYS; NANOPARTICLES; FABRICATION;

D O I：

10.1002/macp.201500323

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel and versatile approach to the preparation of multitype polymers brushes on the quantum dots surface is reported. In this method, an azo initiator is first immobilized covalently onto CdSe/CdS particle surface by reacting with the 4,4'-Azobis (4-cyanovaleric acid) through an ester linkage. CdSe/CdS nanoparticles with polymer brushes (CdSe/CdS-polymers) of different properties, including hydrophilic polyacrylamide, poly(acrylic acid), and poly(vinyl pyrrolidone); hydrophobic oleophilic poly(vinyl acetate), poly(methyl acrylate), and poly(methyl methacrylate); polystyrene with conjugate group; and polyacrylonitrile with strong polarity group, are synthesized by one approach (the surface-initiated radical poly merization technique), respectively. The structures and properties of CdSe/CdS-polymers reveal that the CdSe/CdS-azo initiator has excellent ability to initiate various kinds of vinyl monomers and these synthetic CdSe/CdS-polymers exhibit good stability and can emit multiple colors from the emission 405 to 569 nm. Moreover, CdSe/CdS-polymers brushes show characteristic micromorphologies. Such strategy provides a platform to achieve nanocomposites with different properties by a new CdSe/CdS-azo initiator through the simple conventional radical polymerization technique. Besides, the synthetic approach gives access to multitype modification of different nanoparticles with polymers.

引用

页码：664 / 671

页数：8