Synthesis and characterization of star polylactide by ring-opening polymerization of L-lactic acid O-carboxyanhydride

被引：12
作者：
Yuan, Mingwei [1 ]
He, Zhengguo [1 ]
Li, Hongli [1 ]
Jiang, Lin [1 ]
Yuan, Minglong [1 ]
机构：
[1] Yunnan Univ Nationalities, Engn Res Ctr Biopolymer Funct Mat Yunnan, Kunming 650031, Yunnan, Peoples R China
来源：
POLYMER BULLETIN | 2014年 / 71卷 / 06期
基金：
中国国家自然科学基金;
关键词：
L-Lactic acid O-carboxyanhydride; Ring-opening polymerization; 4-Dimethylaminopyridine catalyst; Star polylactide; HYDROLYTIC DEGRADATION; POLY(ETHYLENE GLYCOL); BLOCK-COPOLYMERS; POLYESTERS; POLY(L-LACTIDE)S; BEHAVIOR; BEARING; MONOMER;
D O I：
10.1007/s00289-014-1125-2
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Ring-opening polymerization of l-lactic acid O-carboxyanhydride was catalyzed by 4-dimethylaminopyridine in the presence of polyols pentaerythritol (PER) or dipentaerythritol (DPE). A high yield and relatively high molecular weight of 4- or 6-arm star PLA were obtained. The reaction was observed to be conducted easily and controllably. NMR analysis revealed that the end of the star PLA chain is a hydroxyl group and the central core is a PER or DPE group. The crystallinity of star PLA is lower than that of linear PLA. The crystallinity of 4-arm star PLA is lower than that of 6-arm PLA. Compared with that of 4-arm star PLA, the molecular arrangement of 6-arm star PLA may be relatively more regular.
引用
收藏
页码：1331 / 1347
页数：17
相关论文
共 34 条
[1]   Dynamic Mechanical Analysis and Hydrolytic Degradation Behavior of Linear and Branched Poly(L-lactide)s and Poly(L-lactide-co-glycolide)s [J].
Atkinson, Jeffrey L. ;
Vyazovkin, Sergey .
MACROMOLECULAR CHEMISTRY AND PHYSICS, 2013, 214 (07) :835-843
[2]  
Biela T, 2007, POLIMERY-W, V52, P106
[3]   Monomer versus alcohol activation in the 4-dimethylaminopyridine-catalyzed ring-opening polymerization of lactide and lactic O-carboxylic anhydride [J].
Bonduelle, Colin ;
Martin-Vaca, Blanca ;
Cossio, Fernando P. ;
Bourissou, Didier .
CHEMISTRY-A EUROPEAN JOURNAL, 2008, 14 (17) :5304-5312
[4]   Lipase-Catalyzed Ring-Opening Polymerization of the O-Carboxylic Anhydride Derived from Lactic Acid [J].
Bonduelle, Colin ;
Martin-Vaca, Blanca ;
Bourissou, Didier .
BIOMACROMOLECULES, 2009, 10 (11) :3069-3073
[5]   Control of thermal properties and hydrolytic degradation in poly(lactic acid) polymer stars through control of isospecificity of polymer arms [J].
Cameron, Donald J. A. ;
Shaver, Michael P. .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2012, 50 (08) :1477-1484
[6]   Aliphatic polyester polymer stars: synthesis, properties and applications in biomedicine and nanotechnology [J].
Cameron, Donald J. A. ;
Shaver, Michael P. .
CHEMICAL SOCIETY REVIEWS, 2011, 40 (03) :1761-1776
[7]   Synthesis and Unimolecular Micelles of Amphiphilic Dendrimer-like Star Polymer with Various Functional Surface Groups [J].
Cao, Weiqiang ;
Zhu, Lei .
MACROMOLECULES, 2011, 44 (06) :1500-1512
[8]   Star-shaped poly(ether-ester) block copolymers: Synthesis, characterization, and their physical properties [J].
Choi, YR ;
Bae, YH ;
Kim, SW .
MACROMOLECULES, 1998, 31 (25) :8766-8774
[9]   Functionalized polyesters from organocatalyzed ROP of gluOCA, the O-carboxyanhydride derived from glutamic acid [J].
du Boullay, Olivier Thillaye ;
Bonduelle, Colin ;
Martin-Vaca, Blanca ;
Bourissou, Didier .
CHEMICAL COMMUNICATIONS, 2008, (15) :1786-1788
[10]   An activated equivalent of lactide toward organocatalytic ring-opening polymerization [J].
du Boullay, Olivier Thillaye ;
Marchal, Emmanuel ;
Martin-Vaca, Blanca ;
Cossio, Fernando P. ;
Bourissou, Didier .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (51) :16442-16443
1234