Amphiphilic acenaphthylene-maleic acid light-harvesting alternating copolymers: Reversible addition - Fragmentation chain transfer synthesis and fluorescence

被引：30

作者：

Chen, M

Ghiggino, KP ^{[1
]}

Mau, AWH

Sasse, WHF

Thang, SH

Wilson, GJ

机构：

[1] Univ Melbourne, Sch Chem, Melbourne, Vic 3010, Australia

[2] CSIRO Mol Sci, Clayton, Vic 3169, Australia

来源：

MACROMOLECULES | 2005年 / 38卷 / 08期

关键词：

D O I：

10.1021/ma047361+

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

An amphiphilic alternating light-harvesting copolymer of narrow polydispersity containing an average of 38 acenaphthylene and maleic acid units with a terminal 9,10-diphenylanthryl energy acceptor has been synthesized by reversible addition-fragmentation chain transfer polymerization. Fluorescence and fluorescence anisotropy measurements of the polymer in methanol and aqueous solutions have been used to characterize energy transfer processes and conformational dynamics. The increased energy transfer efficiencies approaching 100% observed in low-pH aqueous solutions compared to those in more basic aqueous and methanol solutions can be attributed to the formation of a contracted polymer coil and reduced acenaphthenyl excimer formation.

引用

页码：3475 / 3481

页数：7

共 80 条

[31] Water soluble polymers .74. pH responsive microdomains in labeled n-octylamide-substituted poly(sodium maleate-alt-ethyl vinyl ethers): Synthesis, steady-state fluorescence, and nonradiative energy transfer studies [J].