The Sonogashira-Hagihara coupling polymerization of 3',5'-diiodo-4'-hydroxy-N-alpha-tert-butoxycarbonyl-D-phenylglycine ethyl-, hexyl-, and laurylamides 1a-c with p-nonsubstituted, cyano, hexyl, and methoxy 3,5-diethynylazobenzenes 2a-d was carried out to obtain optically active novel poly(m-phenyleneethynylene) with M-w values in the range from 6900 to 15 400 in 62-84% yields. CD and UV-vis spectroscopic data indicated that the polymers adopted thermally stable helical conformations in CH2Cl2 and N,N-dimethylformamide. Poly-(1b-2a) further formed a chirally aggregated structure. The azobenzene moieties of the polymers underwent reversible photoisomerization upon UV- and visible-light irradiation, accompanying the changes of the higher-order structures.
机构:
Hangzhou Science and Technology Information Institute
College of Material Chemistry and Chemical Engineering,Hangzhou Normal UniversityHangzhou Science and Technology Information Institute
Bin Liu
Fang-lin Huang
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College of Material Chemistry and Chemical Engineering,Hangzhou Normal UniversityHangzhou Science and Technology Information Institute
Fang-lin Huang
Yong-feng Shi
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机构:
Hangzhou Science and Technology Information InstituteHangzhou Science and Technology Information Institute
Yong-feng Shi
Zhi-qing Ni
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Hangzhou Science and Technology Information InstituteHangzhou Science and Technology Information Institute
Zhi-qing Ni
Ye Lin
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Hangzhou Science and Technology Information InstituteHangzhou Science and Technology Information Institute
Ye Lin
尹守春
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机构:
College of Material Chemistry and Chemical Engineering,Hangzhou Normal UniversityHangzhou Science and Technology Information Institute
机构:
Nanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
Chen, Lie
Chen, Yiwang
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Nanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
Chen, Yiwang
Yao, Kai
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Nanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
Yao, Kai
Zhou, Weihua
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Nanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
Zhou, Weihua
Li, Fan
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Nanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
Li, Fan
Chen, Liping
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E China Jiaotong Univ, Dept Chem Engn, Nanchang 330013, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
Chen, Liping
Hu, Rongrong
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Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
Hu, Rongrong
Tang, Ben Zhong
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Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R ChinaNanchang Univ, Inst Polymers, Dept Chem, Nanchang 330031, Peoples R China
机构:
Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Li, Xiangfeng
Li, Chusheng
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Li, Chusheng
Yan, Jiaguo
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Yan, Jiaguo
Lu, Jiang
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Lu, Jiang
Hang, Hui
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China