Synthesis of star-like polybutadienes by a combination of living anionic polymerization and "click" coupling method

doi:10.1007/s10118-014-1448-3

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	Synthesis of star-like polybutadienes by a combination of living anionic polymerization and "click" coupling method
	Zhang, Guang-chun 1,2; Zheng, Jun 1,2; Liu, Feng 1,2; Zhang, Zhi-jie 1,2; Ma, Li 1; Tang, Tao 1
刊名	CHINESE JOURNAL OF POLYMER SCIENCE
	2014-06-01
卷号	32 期号:6 页码:731-742
关键词	Polybutadiene Living Anionic Polymerization Click Chemistry Kinetic Study Coupling Efficiency Star-like
ISSN号	0256-7679
DOI	10.1007/s10118-014-1448-3
英文摘要	Three-arm and four-arm star-like polybutadienes (PBds) were synthesized via the combination of living anionic polymerization and the click coupling method. Kinetic study showed that the click reaction between the azido group terminated PBd-t-N-3 and the alkyne-containing multifunctional linking reagent was fast and highly efficient. All coupling reactions were fully accomplished within 40 min at 50 A degrees C in toluene in the presence of the reducing agent Cu(0), proven by H-1-NMR, FTIR and GPC measurements. For the coupling reactions between the PBd-t-N-3 polymer and dialkyne-containing compound, the final conversion of the coupled PBd-PBd polymer was ca. 97.0%. When a PBd-t-N-3 polymer was reacted with trialkyne-containing or tetraalkyne-containing compound, the conversion of three-arm or four-arm PBd was around 95.5% or 87.0%, respectively. Several factors influencing the coupling efficiency were studied, including the molecular weight of the initial PBd-t-N-3, arm numbers and the molar ratio of the azido group to the alkynyl group. The results indicated that the conversion of the target products would be promoted when the molecular weight of the PBd-t-N-3 was low and the molar ratio of the azido to alkynyl groups was close to 1.
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000335496600007
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52833]
专题	中国科学院化学研究所
通讯作者	Tang, Tao
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guang-chun,Zheng, Jun,Liu, Feng,et al. Synthesis of star-like polybutadienes by a combination of living anionic polymerization and "click" coupling method[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2014,32(6):731-742.
APA	Zhang, Guang-chun,Zheng, Jun,Liu, Feng,Zhang, Zhi-jie,Ma, Li,&Tang, Tao.(2014).Synthesis of star-like polybutadienes by a combination of living anionic polymerization and "click" coupling method.CHINESE JOURNAL OF POLYMER SCIENCE,32(6),731-742.
MLA	Zhang, Guang-chun,et al."Synthesis of star-like polybutadienes by a combination of living anionic polymerization and "click" coupling method".CHINESE JOURNAL OF POLYMER SCIENCE 32.6(2014):731-742.