Single-site metal alkoxide catalysts for ring-opening polymerizations. Poly(dilactide) synthesis employing {HB(3-Bu(t)pz)(3)}Mg(OEt)

被引：108

作者：

Chisholm, MH

Eilerts, NW

机构：

[1] Department of Chemistry, Indiana University, Bloomington

来源：

CHEMICAL COMMUNICATIONS | 1996年 / 07期

关键词：

D O I：

10.1039/cc9960000853

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

{HB(Bu(t)pz)(3)}Mg(OEt) in CH2Cl2 at 22 degrees C acts asa catalyst precursor for the fast, stereoselective, ring-opening polymerization of L,L-dilactide by the acyl cleavage mechanism yielding isotactic poly(L,L-dilactide) with PDI approximate to 1.2.

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页码：853 / 854

页数：2

相关论文

共 13 条

[1] COPOLYMERIZATION AND DEGRADATION OF POLY(LACTIC ACID CO-LYSINE) [J].

BARRERA, DA ;

ZYLSTRA, E ;

LANSBURY, PT ;

LANGER, R .

MACROMOLECULES, 1995, 28 (02) :425-432

[2]

BERO M, 1990, MAKROMOL CHEM, V191, P2287

[3]

CHANDRY AK, 1995, J AM CHEM SOC, V117, P3728

[4]

Goeke GL, 1980, Process for preparing olefin oxide polymerization catalysts by aging the catalysts, Patent No. [US4193892A, 4193892]

[5] [TRIS(PYRAZOLYL)HYDROBORATO]MAGNESIUM ALKYL DERIVATIVES - REACTIVITY STUDIES [J].

HAN, R ;

PARKIN, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (02) :748-757

[6]

LANGER R, 1993, ACCOUNTS CHEM RES, V26, P547

[7] PREPARATION AND CHARACTERIZATION OF POLY(L-LACTIC ACID) FOAMS [J].

MIKOS, AG ;

THORSEN, AJ ;

CZERWONKA, LA ;

BAO, Y ;

LANGER, R ;

WINSLOW, DN ;

VACANTI, JP .

POLYMER, 1994, 35 (05) :1068-1077

[8] LEWIS ACID-CATALYZED POLYMERIZATION OF L-LACTIDE - KINETICS AND MECHANISM OF THE BULK-POLYMERIZATION [J].

NIJENHUIS, AJ ;

GRIJPMA, DW ;

PENNINGS, AJ .

MACROMOLECULES, 1992, 25 (24) :6419-6424

[9] CONTROLLED-RELEASE OF PROTEINS FROM POLY(L-LACTIC ACID) COATED POLYISOBUTYLCYANOACRYLATE MICROCAPSULES [J].

PARK, TG ;

ALONSO, MJ ;

LANGER, R .

JOURNAL OF APPLIED POLYMER SCIENCE, 1994, 52 (12) :1797-1807

[10]

REICHLE WT, 1987, Patent No. 4667013