文献类型：期刊文献

英文题名：Size-Tunable Polymeric Nanoreactors for One-Pot Synthesis and Encapsulation of Quantum Dots

作者：Qian, Guannan[1];Zhu, Benchuan[1];Wang, Youfu[1];Deng, Sheng[1];Hu, Aiguo[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China

年份：2012

卷号：33

期号：16

起止页码：1393

外文期刊名：MACROMOLECULAR RAPID COMMUNICATIONS

收录：;EI(收录号：20123415355244);WOS:【SCI-EXPANDED(收录号:WOS:000307723800011)】；

基金：The support of the National Natural Science Foundation of China (No. 20874026), New Century Excellent Talents in University, Shanghai Shuguang Project (07SG33) and Shanghai Leading Academic Discipline Project (B502) is gratefully acknowledged. A. H. thanks Profs. Shouwu Guo, and Lingyong Zhu for their help with AFM, and UV-vis and PL spectroscopy. G.Q. and B.Z. contributed equally to this work.

语种：英文

外文关键词：nanoreactor; quantum dot; atomic force microscopy; gel permeation chromatography; intramolecular chain collapse

摘要：Hydrophilic polymeric nanoparticles are synthesized through a Bergman cyclization- mediated intramolecular chain collapse of structurally well-defined linear polymers, and then used as size-tunable nanoreactors to fabricate and encapsulate quantum dots in a one-pot reaction. Crystalline quantum dots are formed in all of these nanoreactors and visualized by transmission electron microscopy. Smaller nanoreactors produce one quantum dot each while larger nanoreactors form a number, resulting in fluorescence quenching. By controlling the molecular weight of the linear polymer precursor, a variable number of nanocrystals are fabricated and assembled in a single nanoreactor.