Water-soluble hyperbranched poly(ester urethane)s based on D,L-alanine: isocyanate-free synthesis, post-functionalization and application

	Water-soluble hyperbranched poly(ester urethane)s based on D,L-alanine: isocyanate-free synthesis, post-functionalization and application
	Bao YM ; Shen GR ; He J ; Li YS
刊名	green chemistry
	2012
卷号	14 期号:8 页码:2243-2250
关键词	ONE-POT SYNTHESIS CYCLIC CARBONATE GLYCEROL CARBONATE BRANCHING POINTS ENERGY-STORAGE POLYURETHANES POLYMERS MONOMERS NANOCARRIERS POLYCONDENSATION
ISSN号	1463-9262
通讯作者	bao ym
中文摘要	the green synthesis of a novel hyperbranched poly(ester urethane) (hbpeu) has been reported via an isocyanate-free method based on d, l-alanine and a lower-toxic cyclic carbonate monomer, glycerol carbonate. benefiting from the efficient reaction between the amine and five-membered cyclic carbonate, an ab(2)-type monomer bearing urethane linkages has been quantitatively formed without using a toxic isocyanate species. subsequent bulk polyesterification was carried out to give water-soluble hbpeus with moderate molecular weights and a degree of branching (db) in the range of 0.44-0.52. furthermore, the polycaprolactone arms were grafted to the hbpeu core via ring-opening polymerization of epsilon-caprolactone initiated by the peripheral hydroxyl groups around hbpeu, forming biodegradable and biocompatible amphiphilic star copolymers, which acts as an "unimolecular reverse micelle" in chcl3. two water soluble dyes, methyl orange and bromophenol blue, were successfully transported from water to the insoluble chloroform phase by the core-shell star polymers, indicating the great potential of the micelles as nanocarriers. the arm lengths and core sizes of the star polymers greatly influenced the dye-loading capacity of the nanocarrier.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000306658200023
公开日期	2013-06-30
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48489]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Bao YM,Shen GR,He J,et al. Water-soluble hyperbranched poly(ester urethane)s based on D,L-alanine: isocyanate-free synthesis, post-functionalization and application[J]. green chemistry,2012,14(8):2243-2250.
APA	Bao YM,Shen GR,He J,&Li YS.(2012).Water-soluble hyperbranched poly(ester urethane)s based on D,L-alanine: isocyanate-free synthesis, post-functionalization and application.green chemistry,14(8),2243-2250.
MLA	Bao YM,et al."Water-soluble hyperbranched poly(ester urethane)s based on D,L-alanine: isocyanate-free synthesis, post-functionalization and application".green chemistry 14.8(2012):2243-2250.