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

Ming Chen; Kenneth P. Ghiggino; Albert W.H. Mau; Wolfgang H.F. Sasse; San H. Thang; Gerard J. Wilson

doi:10.1021/ma047361+

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

Ming Chen, Kenneth P. Ghiggino, Albert W.H. Mau, Wolfgang H.F. Sasse, San H. Thang, Gerard J. Wilson

Research output: Contribution to journal › Article › Research › peer-review

34 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3475-3481
Number of pages	7
Journal	Macromolecules
Volume	38
Issue number	8
DOIs	https://doi.org/10.1021/ma047361+
Publication status	Published - 19 Apr 2005
Externally published	Yes

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abstract = "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.",

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T2 - Reversible addition-fragmentation chain transfer synthesis and fluorescence

AU - Chen, Ming

AU - Ghiggino, Kenneth P.

AU - Mau, Albert W.H.

AU - Sasse, Wolfgang H.F.

AU - Thang, San H.

AU - Wilson, Gerard J.

PY - 2005/4/19

Y1 - 2005/4/19

N2 - 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.

AB - 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.

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JO - Macromolecules

JF - Macromolecules

IS - 8

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

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