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Spiropyran-Based Polymeric Vesicles: Preparation and Photochromic Properties

✍ Scribed by Chuan-Qun Huang; Ying Wang; Chun-Yan Hong; Cai-Yuan Pan

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
394 KB
Volume
32
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

A direct access to photochromic polymeric vesicles was demonstrated via polymerization‐induced self‐assembly and reorganization (PISR). The resulting vesicles displayed interesting photochromic behaviors different from that of their free polymer chains in DMF, and the vesicles exhibited stronger fluorescence and excellent photostability due to confinement of conformational flexibility of the polymer chains in aggregates. magnified image

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## Abstract Resorting to ‘click chemistry’, four photochromic dendrimers, A‐Tri‐SP, B‐Tri‐SP, C‐Tri‐SP, and D‐Hex‐SP, have been synthesized facilely in sound yields of 85, 88, 94, and 80%, respectively. These dendrimers have been obtained by the straightforward coupling of azido‐attached photochrom