Pyrene End-Labeled Diblock Glycopolymers: Synthesis and Aggregation

A pyrene end‐labeled amphiphilic block copolymer, poly(ε‐caprolactone)‐block‐poly[6‐O‐(4‐vinylbenzyl)‐D‐galactose] (Py‐PCL‐b‐PVBG), was synthesized by a four‐step method. The aggregation behavior of the diblock copolymer in solution was studied by monitoring the fluorescence of pyrene. TEM measureme...

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Published in:Macromolecular chemistry and physics 2005-02, Vol.206 (4), p.513-520
Main Authors: Lu, Feng-Zhu, Meng, Jian-Qiang, Du, Fu-Sheng, Li, Zi-Chen, Zhang, Bao-Yan
Format: Article
Language:English
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block copolymers
crosslinking
fluorescence
glycopolymer
self-assembly
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cited_by cdi_FETCH-LOGICAL-c3934-183e60199c81e471e977721e5be4d72561856e6ad9fa41428b9ebd6450f6da3d3
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description A pyrene end‐labeled amphiphilic block copolymer, poly(ε‐caprolactone)‐block‐poly[6‐O‐(4‐vinylbenzyl)‐D‐galactose] (Py‐PCL‐b‐PVBG), was synthesized by a four‐step method. The aggregation behavior of the diblock copolymer in solution was studied by monitoring the fluorescence of pyrene. TEM measurements revealed that the aggregates obtained by first dissolving the copolymer in N,N‐dimethylformamide (DMF), followed by the addition of water, were primarily spheres with the PCL blocks in the core. The PVBG corona was then crosslinked with glutaraldehyde. Final removal of the PCL core was accomplished by degradation under basic conditions, which resulted in the formation of hollow glycopolymer nanospheres. Structure of poly(ε‐caprolactone)‐block‐poly[6‐O‐(4‐vinylbenzyl)‐D‐galactose].
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subjects block copolymers
crosslinking
fluorescence
glycopolymer
self-assembly
title Pyrene End-Labeled Diblock Glycopolymers: Synthesis and Aggregation
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