Hyperbranched polyesters based on hydroxyalkyl-lactones via thiol-ene click reaction

被引：6
|
作者：
Stoehr, Olesja [1 ]
Ritter, Helmut [1 ]
机构：
[1] Univ Dusseldorf, Inst Organ Chem & Macromol Chem, D-40225 Dusseldorf, Germany
来源：
POLYMER INTERNATIONAL | 2015年 / 64卷 / 01期
关键词：
hyperbranched aliphatic polyester; thiol-ene click reaction; ring opening polymerization; RING-OPENING POLYMERIZATION; POLYPHENYLENE; POLYURETHANES; POLYETHERS; CHEMISTRY; POLYMERS; MONOMER;
D O I：
10.1002/pi.4825
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The preparation of AB(2) monomers via thiol-ene click reaction from six- and seven-membered unsaturated lactones is described. The hydroxyl-functionalized valerolactone was prepared by use of Michael thiol-ene-addition reaction starting from 2-mercaptoethanol and 3-methylenetetrahydro-2H-pyran-2-on. The hydroxyl-functionalized caprolactone was prepared radically from 2-mercaptoethanol and 7-allyloxepan-2-one. Both AB(2) monomers were polymerized via ring opening in the presence of tin(II)-2-ethylhexanoate (Sn(Oct)(2)) as a catalyst yielding the hyperbranched polyesters. The new hyperbranched polyesters were analyzed by C-13 NMR spectra to determine the degree of branching. (c) 2014 Society of Chemical Industry
引用
收藏
页码：37 / 41
页数：5
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