NDLI: A new polymerisation route to conjugated polymers: regio- and stereoselective synthesis of linear and hyperbranched poly(arylene chlorovinylene)s by decarbonylative polyaddition of aroyl chlorides and alkynes

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A new polymerisation route to conjugated polymers: regio- and stereoselective synthesis of linear and hyperbranched poly(arylene chlorovinylene)s by decarbonylative polyaddition of aroyl chlorides and alkynes

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Chemical Science Vol -1

A new polymerisation route to conjugated polymers: regio- and stereoselective synthesis of linear and hyperbranched poly(arylene chlorovinylene)s by decarbonylative polyaddition of aroyl chlorides and alkynes

Content Provider	Royal Society of Chemistry (RSC)
Author	Yue, Yanan Wang, Jian Sung, Herman H. Y. Hong, Yuning Ng, Jason C. Y. Lam, Jacky W. Y. Chan, Carrie Y. K. Liu, Jianzhao Tseng, Nai-Wen Deng, Chunmei Williams, Ian D. Tang, Ben Zhong
Copyright Year	2011
Abstract	We present here a new polymerisation route for the synthesis of new conjugated polymers. Decarbonylative polyadditions of diyne monomers [bis(4-ethynylphenyl)dimethylsilane, 4,4′-diethynylbiphenyl, and 1,2-bis(4-ethynylphenyl)-1,2-diphenylethene] with respective terephthaloyl dichloride and benzene-1,3,5-tricarbonyl trichloride catalyzed by [Rh(cod)Cl]2/PPh3, [Rh(nbd)Cl]2/PPh3, [RhCpCl2]2/PPh3, [Rh(cod)(PPh3)2]+PF6−, or [Rh(cod)(PPh2)(CH2)4(PPh2)]+BF4− (cod = 1,5-cyclooctadiene, nbd = 2,5-norbornadiene, Cp = pentamethyl cyclopentadienyl), proceed smoothly, producing linear and hyperbranched poly(arylene chloroZ-vinylene)s (PACVs) in regio- and stereoselective manners with high molecular weights (absolute Mw up to 5.31 × 105) in high yields (up to 92%). Model reactions are designed to confirm the chemical structures of the PACVs. The resultant polymers are processable and enjoy high thermal stability. The linear PAVCs can undergo thermal curing at high temperatures and compared with their hyperbranched counterparts, they are more electronically conjugated due to the para-conjugation effect, as revealed by both experimental and theoretical studies. The light emissions of linear PAVCs with twisted tetraphenylethene units are enhanced by aggregate formation, demonstrating an unusual aggregation-enhanced emission characteristic.
Starting Page	1850
Ending Page	1859
Page Count	10
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	2
Issue Number	9
Journal	Chemical Science
DOI	10.1039/c1sc00300c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hexafluorophosphate Stereoselectivity Polyyne Cyclopentadienyl Dimethylsilane Benzene 1,5-Cyclooctadiene Methyl group Molar mass distribution Norbornadiene
Content Type	Text
Resource Type	Article
Subject	Chemistry

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A new polymerisation route to conjugated polymers: regio- and stereoselective synthesis of linear and hyperbranched poly(arylene chlorovinylene)s by decarbonylative polyaddition of aroyl chlorides and alkynes

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A new polymerisation route to conjugated polymers: regio- and stereoselective synthesis of linear and hyperbranched poly(arylene chlorovinylene)s by decarbonylative polyaddition of aroyl chlorides and alkynes

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