Hyperbranched polycarbosilane macromonomers bearing oxazoline functionalities

被引：73

作者：

Lach, C

Muller, P

Frey, H

Mulhaupt, R

机构：

[1] UNIV FREIBURG,FREIBURGER MAT FORSCHUNGSZENTRUM,D-79104 FREIBURG,GERMANY

[2] UNIV FREIBURG,FREIBURGER MAT FORSCHUNGSZENTRUM,D-79104 FREIBURG,GERMANY

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1997年 / 18卷 / 03期

关键词：

D O I：

10.1002/marc.1997.030180306

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Synthesis of hyperbranched polycarbosilanes by hydrosilylation of triallylsilane is reported. Soluble high molecular weight polymer was obtained in an uncontrolled bulk reaction. Addition of 2-(10-decen-1-yl)-1,3-oxazoline (i) afforded control over degree of polymerization (DP) and (ii) resulted in hyperbranched macromonomers. 17000 greater than or equal to<(M)over bar (w)>greater than or equal to 800 (GPC (PS)) was obtained. Si-29 NMR spectroscopy allowed identification of dendritic, branched, linear, and terminal silicon branch-points. A modified definition for the degree of branching yielded a value of 0.48 +/- 0.05 (theory: 0.44).

引用

收藏

页码：253 / 260

页数：8

相关论文

共 35 条

[21] HYPERBRANCHED ALIPHATIC POLYESTERS [J].

MALMSTROM, E ;

JOHANSSON, M ;

HULT, A .

MACROMOLECULES, 1995, 28 (05) :1698-1703

[22] HYPERBRANCHED POLY(SILOXYSILANES) [J].

MATHIAS, LJ ;

CAROTHERS, TW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (10) :4043-4044

[23] HOMOPOLYMERIZATION AND COPOLYMERIZATION OF PHENYLTRICHLOROSILANE BY SONOCHEMICAL REDUCTIVE COUPLING IN THE PRESENCE OF SODIUM [J].

MATYJASZEWSKI, K ;

KIM, HK .

POLYMER BULLETIN, 1989, 22 (03) :253-259

[24] DEGRADABLE HYPERBRANCHED POLY(BIS(UNDECENYLOXY)METHYLSILANE)S [J].

MUZAFAROV, AM ;

GOLLY, M ;

MOLLER, M .

MACROMOLECULES, 1995, 28 (24) :8444-8446

[25] LIQUID-CRYSTALLINE POLYETHERS BASED ON CONFORMATIONAL ISOMERISM .23. SYNTHESIS AND CHARACTERIZATION OF A THERMOTROPIC NEMATIC LIQUID-CRYSTALLINE DENDRIMERIC POLYMER [J].

PERCEC, V ;

KAWASUMI, M .

MACROMOLECULES, 1992, 25 (15) :3843-3850

[26] TOWARD WILLOWLIKE THERMOTROPIC DENDRIMERS [J].

PERCEC, V ;

CHU, PW ;

KAWASUMI, M .

MACROMOLECULES, 1994, 27 (16) :4441-4453

[27] Liquid crystalline carbosilane dendrimers: First generation [J].

Ponomarenko, SA ;

Rebrov, EA ;

Bobrovsky, AY ;

Boiko, NI ;

Muzafarov, AM ;

Shibaev, VP .

LIQUID CRYSTALS, 1996, 21 (01) :1-12

[28] SYNTHESIS AND CHARACTERIZATION OF HYPERBRANCHED POLYURETHANES PREPARED FROM BLOCKED ISOCYANATE MONOMERS BY STEP-GROWTH POLYMERIZATION [J].

SPINDLER, R ;

FRECHET, JMJ .

MACROMOLECULES, 1993, 26 (18) :4809-4813

[29]

TOMALIA DA, 1990, ANGEW CHEM, V102, P105

[30] ALL-AROMATIC HYPERBRANCHED POLYESTERS WITH PHENOL AND ACETATE END-GROUPS - SYNTHESIS AND CHARACTERIZATION [J].

TURNER, SR ;

VOIT, BI ;

MOUREY, TH .

MACROMOLECULES, 1993, 26 (17) :4617-4623

← 1 2 3 4 →