Reinvestigation of the ring-opening polymerization of ε-caprolactone with 1,8-diazacyclo[5.4.0]undec-7-ene organocatalyst in bulk

被引：11

作者：

Chen, Yang ^{[1
]}

Zhang, Jie ^{[1
]}

Xiao, Wenhao ^{[1
]}

Chen, Anfu ^{[1
]}

Dong, Zhixian ^{[1
]}

Xu, Jinbao ^{[1
]}

Xu, Wenhua ^{[2
]}

Lei, Caihong ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Mat & Energy, Guangdong Prov Key Lab Funct Soft Condensed Matte, Guangzhou 510006, Peoples R China

[2] Northwest Univ, Coll Chem & Mat Sci, Key Lab Synthet & Nat Funct Mol Chem, Minist Educ, Xian 710069, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2021年 / 161卷

基金：

中国国家自然科学基金;

关键词：

CL; DBU; Controlled; living ROP; End-functionality; CATALYSTS; DBU; BUTYROLACTONE; OPPORTUNITIES; CHALLENGES; CHEMISTRY; INITIATOR; COPOLYMER; ENZYMES; BASES;

D O I：

10.1016/j.eurpolymj.2021.110861

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) was used as organocatalyst to reinvestigate the ring-opening polymerization (ROP) of epsilon-caprolactone (CL) with benzyl alcohol (BnOH) initiator in bulk at 90 degrees C considering the unsuccessful ROP of CL at RT in previously reported publications. Kinetic study indicates that the PCLs could be well-designed with a controlled/living character of polymerization. The use of functional initiators, such as 2hydroxyethyl methacrylate (HEMA), propargyl alcohol (PGA), 6-azido-1-hexanol (AHA) and methoxy poly (ethylene glycol) (mPEG) leads to end-functionalized PCLs. Accordingly, the block copolymerization of CL with delta-valerolactone (VL), trimethylene carbonate (TMC) and lactide (LA) successfully proceeded to give PCL-b-PVL, PCL-b-PTMC and PCL-b-PLA copolymers. Finally, the reaction mechanism was studied with DFT calculations and NMR measurements.

引用

页数：10

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