Multiple Stimuli-Responsive and White-Light Emission of One-Pot Synthesized Block Copolymers Containing Poly(3-hexylthiophene) and Poly(triethyl glycol allene) Segments

被引：35

作者：

Hu, Yan-Yu ^{[1
]}

Su, Ming ^{[1
]}

Ma, Cui-Hong ^{[1
]}

Yu, Zhipeng ^{[1
]}

Liu, Na ^{[1
]}

Yin, Jun ^{[1
]}

Ding, Yunsheng ^{[1
]}

Wu, Zong-Quan ^{[1
]}

机构：

[1] Hefei Univ Technol, Anhui Key Lab Adv Funct Mat & Devices, Sch Chem & Chem Engn, Dept Polymer Sci & Engn, Hefei 230009, Anhui, Peoples R China

来源：

MACROMOLECULES | 2015年 / 48卷 / 15期

关键词：

CONJUGATED DIBLOCK COPOLYMERS; GRIGNARD METATHESIS METHOD; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); EMITTING-DIODES; MECHANISTICALLY DISTINCT; SINGLE CATALYST; POLYMERS; WATER; POLYTHIOPHENE; POLYMERIZATIONS;

D O I：

10.1021/acs.macromol.5b01120

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Conjugated block copolymers with tunable properties have attract considerable research interests in recent years. Herein, we report a series of novel block copolymers containing conjugated poly(3-hexylthiophene) (P3HT) and poly(triethyl glycol allene) (PTA) segments which were synthesized in one pot using nickel complex as a single catalyst via distinct polymerization mechanisms. Interestingly, the P3HT-b-PTA diblock copolymers exhibit excellent thermoresponsive properties in water, and the lower critical solution temperature (LCST) is dependent on polymer concentration and the block ratio. Moreover, the diblock copolymers showed pH-responsive properties in CHCl3 with the emission color shuttled between orange and deep green upon the alternate additions of trifluoroacetic acid and triethylamine. Both P3HT-b-PTA and P3HT-b-PTA-b-P3HT block copolymers exhibit solvatochromism properties. The emission of the block copolymers can be facilely tuned through variation on solvents with the emission color spanned widely from red to blue. Very interestingly, white-light emission can be readily achieved from the P3HT-b-PTA-b-P3HT triblock copolymer in the mixture of THF and methanol with 1/3 volume ratio.

引用

页码：5204 / 5212

页数：9

共 66 条

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