中国科学院上海有机化学研究所机构知识库
Advanced  
SIOC OpenIR  > 高分子材料研究室  > 期刊论文
学科主题: 高分子化学
题名: Visualization of Spontaneous Aggregates by Diblock Poly(styrene)-b-Poly(L-lactide)/Poly(D-lactide) Pairs in Solution with New Fluorescent CdSe Quantum Dot Labels
其他题名: 运用新的量子点标记观察溶液中聚苯乙烯嵌段聚L乳酸/聚D乳酸对的原位聚集
作者: Hou XD(侯小东) ; Li QB(李巧波) ; He Y(何勇) ; Jia L(贾林) ; Li Y(李洋) ; Zhu YD(朱英丹) ; Cao AM(曹阿民)
通讯作者: 曹阿民
刊名: J. Polym. Sci. Pt. B-Polym. Phys.
发表日期: 2009
卷: 47, 期:14, 页:1393-1405
收录类别: SCI
部门归属: 上海有机所; 上海交通大学
英文摘要: Spontaneous stereocomplex aggregation of diblock poly(styrene)-b-poly(L-lactide) PS-b-PLLA/poly(D-lactide) PDLA pairs has been investigated under ambient temperature in tetrahydrofuran solution. First, diblock PS260-b-PLLA(165) and PS260-b-PDLA(162) bearing similar lengths of respective PLLA and PDLA blocks were synthesized through controlled atom-transfer radical polymerization of styrene, and a subsequent living ring-opening polymerization of optically pure lactides, and their structures were further characterized by nuclear magnetic resonance spectroscopy (NMR) and gel-permeation chromatography (GPC). Subsequently, new enantiomeric poly(D-lactide) stabilized core-shell fluorescent CdSe quantum dots (CdSe/PDLA QD) were designed and prepared as sensitive fluorescence labels to shed new lights on the spontaneous stereocomplex aggregation in THF, which was mediated by stereocomplexation of the PLLA and PDLA chains. Upon simply mixing two individual THF solution of diblock PS260-b-PLLA(165) and HO-PDLA(30)-SH, spontaneous stereocomplex aggregation was studied, and the aggregated uniform spherical particles were observed by scanning electronic microscopy (SEM) to exhibit average particle diameters of 2.0 mu m. Finally, utilizing the prepared CdSe/PDLA QDs as new fluorescent labels, morphologies of the spontaneous aggregates by new diblock PS260-b-PLLA(165)/HO-PDLA(30)-SH pair were for the first time directly visualized by a confocal laser scanning fluorescence microscopy (CLSFM). These results might suggest alternative ways to simply prepare functional fluorescent particles with tunable diameter sizes and would be helpful to understand the mechanism of stereocomplex particle aggregation. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1393-1.405, 2009
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000267444000006
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/22942
Appears in Collections:高分子材料研究室_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
2009226.pdf(594KB)----开放获取--View Download

Recommended Citation:
Hou XD,Li QB,He Y,et al. Visualization of Spontaneous Aggregates by Diblock Poly(styrene)-b-Poly(L-lactide)/Poly(D-lactide) Pairs in Solution with New Fluorescent CdSe Quantum Dot Labels[J]. J. Polym. Sci. Pt. B-Polym. Phys.,2009,47(14):1393-1405.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[侯小东]'s Articles
[李巧波]'s Articles
[何勇]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[侯小东]‘s Articles
[李巧波]‘s Articles
[何勇]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2009226.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace