Synthesis and characterization of four-arm star-shaped polymers and copolymers

被引：5

作者：

Wang, TL ^{[1
]}

Tseng, CG

机构：

[1] Natl Univ Kaohsiung, Dept Chem & Mat Engn, Kaohsiung 811, Taiwan

[2] Natl Kaohsiung Univ Appl Sci, Dept Chem & Mat Engn, Kaohsiung 807, Taiwan

来源：

POLYMER INTERNATIONAL | 2006年 / 55卷 / 05期

关键词：

atom-transfer radical polymerization; four-arm; star-shaped polymers; viscosity;

D O I：

10.1002/pi.2008

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Four-arm star-shaped polymers and copolymers were obtained by transition metal-catalyzed atom-transfer radical polymerization (ATRP). The polymers were characterized by FTIR and (1)H-NMR spectroscopy. Gel permeation chromatography results indicated the formation of polystyrene and polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) arms with controlled molecular weights. In dilute solution, the linear polymers had higher inherent viscosities than star-shaped ones. Thermogravimetric analysis showed a similar degradation mechanism for linear and star-shaped polymers. Differential scanning calorimetry indicated the successful formation of diblock star-shaped copolymers. (C) 2006 Society of Chemical Industry.

引用

页码：558 / 564

页数：7

共 30 条

[21] SYNTHESIS AND CHARACTERIZATION OF STAR-SHAPED POLYMER WITH ONE LABELED ARM [J].

TAKANO, A ;

OKADA, M ;

NOSE, T ;

FUJIMOTO, T .

MACROMOLECULES, 1992, 25 (13) :3596-3598

[22] Multifunctional initiators for the ruthenium-mediated living radical polymerization of methyl methacrylate: Di- and trifunctional dichloroacetates for synthesis of multiarmed polymers [J].

Ueda, J ;

Matsuyama, M ;

Kamigaito, M ;

Sawamoto, M .

MACROMOLECULES, 1998, 31 (03) :557-562

[23] Calixarene-core multifunctional initiators for the ruthenium-mediated living radical polymerization of methacrylates [J].

Ueda, J ;

Kamigaito, M ;

Sawamoto, M .

MACROMOLECULES, 1998, 31 (20) :6762-6768

[24]

Wang J.-S., 1995, POLYM MAT SCI ENG, V73, P416

[25] CONTROLLED LIVING RADICAL POLYMERIZATION - HALOGEN ATOM-TRANSFER RADICAL POLYMERIZATION PROMOTED BY A CU(I)CU(II) REDOX PROCESS [J].

WANG, JS ;

MATYJASZEWSKI, K .

MACROMOLECULES, 1995, 28 (23) :7901-7910

[26] CONTROLLED LIVING RADICAL POLYMERIZATION - ATOM-TRANSFER RADICAL POLYMERIZATION IN THE PRESENCE OF TRANSITION-METAL COMPLEXES [J].

WANG, JS ;

MATYJASZEWSKI, K .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (20) :5614-5615

[27] The effect of initiators and reaction conditions on the polymer syntheses by atom transfer radical polymerization [J].

Wang, TL ;

Liu, YZ ;

Jeng, BC ;

Cai, YC .

JOURNAL OF POLYMER RESEARCH, 2005, 12 (02) :67-75

[28] Synthesis of star-shaped polystyrene by atom transfer radical polymerization using an "arm first" approach [J].

Xia, JH ;

Zhang, X ;

Matyjaszewski, K .

MACROMOLECULES, 1999, 32 (13) :4482-4484

[29] Controlled grafting of well-defined polymers on hydrogen-terminated silicon substrates by surface-initiated atom transfer radical polymerization [J].

Yu, WH ;

Kang, ET ;

Neoh, KG ;

Zhu, SP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (37) :10198-10205

[30] End-functional poly(tert-butyl acrylate) star polymers by controlled radical polymerization [J].

Zhang, X ;

Xia, JH ;

Matyjaszewski, K .

MACROMOLECULES, 2000, 33 (07) :2340-2345

← 1 2 3 →