Step-Growth Polymerization Method for Ultrahigh Molecular Weight Polymers

doi:10.1021/acsmacrolett.9b00475

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	Step-Growth Polymerization Method for Ultrahigh Molecular Weight Polymers
	Zhang, Liangcai; Ren, Xiangzhu; Zhang, Yuanxing; Zhang, Ke
刊名	ACS MACRO LETTERS
	2019-08-01
卷号	8 期号:8 页码:948-954
DOI	10.1021/acsmacrolett.9b00475
英文摘要	The preparation of polymers with an ultrahigh molecular weight (>10(6) g/mol; UHMW) is always a challenge for homogeneous step-growth polymerization. Herein, a unique homogeneous step-growth polymerization method was developed to prepare various UHMW polymers. In this approach, a double-strain-promoted azide-alkyne click reaction (DSPAAC) with a reactive intermediate was used as the polymerization reaction, and sym-dibenzo-1,5-cyclooctadiene-3,7-diyne (DIBOD) and bis-azide compounds with 2,6-diisopropylphenyl azide terminals were used as the monomer pairs. The DSPAAC reaction, with a reactive intermediate, facilitated this polymerization method to efficiently prepare UHMW polymers under convenient, stoichiometrically imbalanced conditions using a slight excess of DIBOD to bis-azide monomer. In addition, the click nature of the DSPAAC reaction facilitated this polymerization method to synthesize UHMW polymers under ambient conditions, requiring no catalysts. The resultant UHMW polymers presented strong fluorescence peaking at 423 nm, good thermal property with the glass transition temperature up to 270 degrees C, and good mechanical property with Young's modulus above 1 GPa.
语种	英语
WOS记录号	WOS:000482521100013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/82694]
专题	中国科学院化学研究所
作者单位	Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Liangcai,Ren, Xiangzhu,Zhang, Yuanxing,et al. Step-Growth Polymerization Method for Ultrahigh Molecular Weight Polymers[J]. ACS MACRO LETTERS,2019,8(8):948-954.
APA	Zhang, Liangcai,Ren, Xiangzhu,Zhang, Yuanxing,&Zhang, Ke.(2019).Step-Growth Polymerization Method for Ultrahigh Molecular Weight Polymers.ACS MACRO LETTERS,8(8),948-954.
MLA	Zhang, Liangcai,et al."Step-Growth Polymerization Method for Ultrahigh Molecular Weight Polymers".ACS MACRO LETTERS 8.8(2019):948-954.