Synthesis of ABC 3-miktoarm star terpolymers from a trifunctional initiator by combining ring-opening polymerization, atom transfer radical polymerization, and nitroxide-mediated radical polymerization

被引：127

作者：

He, T ^{[1
]}

Li, DJ ^{[1
]}

Sheng, X ^{[1
]}

Zhao, B ^{[1
]}

机构：

[1] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

来源：

MACROMOLECULES | 2004年 / 37卷 / 09期

关键词：

D O I：

10.1021/ma036010c

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report a new method to synthesize ABC 3-miktoarm star terpolymers by combining three different controlled/"living" polymerization techniques: ring-opening polymerization (ROP), atom transfer radical polymerization (ATRP), and nitroxide-mediated radical polymerization (NMRP). A trifunctional initiator bearing a hydroxy group, an ATRP initiator, and a NMRP initiator was designed and synthesized. The structure was confirmed by H-1 NMR, C-13 NMR, and mass spectroscopy. ABC star terpolymers were then prepared from the trifunctional initiator by sequential ROP of epsilon-caprolactone, ATRP of methyl methacrylate, and NMRP of styrene. GPC and kinetic analysis indicated that the polymerizations were controlled. The 3-miktoarm star structure was further confirmed by cleavage of a star terpolymer.

引用

页码：3128 / 3135

页数：8

共 46 条

[21] MACROMOLECULAR ENGINEERING OF POLYLACTONES AND POLYLACTIDES .5. SYNTHESIS AND CHARACTERIZATION OF DIBLOCK COPOLYMERS BASED ON POLY-SIGMA-CAPROLACTONE AND POLY(L,L OR D,L)LACTIDE BY ALUMINUM ALKOXIDES [J].