Synthesisand characterization of a novel hyperbranched polyether

被引:20
作者
Borah, J [1 ]
Karak, N [1 ]
机构
[1] Tezpur Univ, Dept Chem Sci, Tezpur 784028, Assam, India
关键词
nucleophilic displacement polymerization; hyperbranched polymer; polyether; single-step synthesis; cyanuric chloride;
D O I
10.1002/pi.1622
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A hyperbranched polyether has been synthesized by a single-step nucleophilic displacement polymerization technique between cyanuric chloride and the sodium salt of bisphenol-A. The effects of various reaction parameters on the yield, and molecular weight, as measured by the intrinsic viscosity of the polymer, have been studied. The synthesized polymer has been characterized by FT-IR, UV and H-1 NMR spectroscopies, elemental analysis, solubility and viscosity measurements. The polymer is soluble in highly polar solvents such as N,N-dimethylacetamide, N,N-dimethylformamide and dimethyl sulfoxide, partially soluble in dilute aqueous NaOH solution, methanol, ethanol, chloroform, etc., but insoluble in water and non-polar hydrocarbon solvents. The solubility parameter of the hyperbranched polymer has also been measured experimentally. (C) 2004 Society of Chemical Industry
引用
收藏
页码:2026 / 2030
页数:5
相关论文
共 17 条
[1]   FUNCTIONAL POLYMERS AND DENDRIMERS - REACTIVITY, MOLECULAR ARCHITECTURE, AND INTERFACIAL ENERGY [J].
FRECHET, JMJ .
SCIENCE, 1994, 263 (5154) :1710-1715
[2]   Synthesis and comparison of hyperbranched aromatic polyimides having the same repeating unit by AB2 self-polymerization and A2+B3 polymerization [J].
Hao, JJ ;
Jikei, M ;
Kakimoto, MA .
MACROMOLECULES, 2003, 36 (10) :3519-3528
[3]   PREPARATION OF POLYMERS WITH CONTROLLED MOLECULAR ARCHITECTURE - A NEW CONVERGENT APPROACH TO DENDRITIC MACROMOLECULES [J].
HAWKER, CJ ;
FRECHET, JMJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (21) :7638-7647
[4]  
Hult A, 1999, ADV POLYM SCI, V143, P1
[5]   Hyperbranched polymers: a promising new class of materials [J].
Jikei, M ;
Kakimoto, M .
PROGRESS IN POLYMER SCIENCE, 2001, 26 (08) :1233-1285
[6]  
Karak N, 1997, J POLYM MATER, V14, P71
[7]  
Karak N, 1999, ANGEW MAKROMOL CHEM, V265, P5
[8]  
Karak N., 1997, Journal of Polymer Materials, V14, P107
[9]   Dendritic hyperbranched polyethynylenes with the 1,3,5-s-triazine moiety [J].
Kim, C ;
Chang, YK ;
Kim, JS .
MACROMOLECULES, 1996, 29 (19) :6353-6355
[10]  
Newkome G.R., 1996, DENDRITIC MOL CONCEP