INTERPENETRATING POLYMER NETWORKS FROM CASTOR-OIL BASED POLYURETHANES AND POLY(METHYL METHACRYLATE) XX

被引：2

作者：

SUTHAR, B ^{[1
]}

PARIKH, N ^{[1
]}

PATEL, N ^{[1
]}

机构：

[1] SARDAR PATEL UNIV,DEPT CHEM,VALLABH VIDYANAGAR 388120,GUJARAT,INDIA

来源：

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS | 1991年 / 15卷 / 02期

关键词：

INTERPENETRATING NETWORKS; CASTOR OIL; POLYURETHANES; PMM; PROPERTIES; STRUCTURE;

D O I：

10.1080/00914039108031525

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two component interpenetrating polymer networks (IPNs) of castor oil based polyurethanes and poly(methyl methacrylate) were prepared by sequential polymerization. The liquid polyurethanes were formed by reacting the hydroxyl group of castor oil with diphenyl methane diisocyanate at different stoichiometric NCO/OH ratios. These polyurethanes were swollen in methyl methacrylate monomer and subsequently polymerized by radical polymerization initiated with benzoyl peroxide in presence of crosslinkers ethylene glycol dimethacrylate and 1,3-propanediamine. Novel interpenetrating polymer networks PU/PMMA IPNs were obtained as films by transfer molding technique. These IPNs were characterized in terms of crosslink density and mechanical properties. The morphology was studied by transmission electron microscopy. Thermal stability was assessed from the thermogravimetric data. © 1991, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：85 / 91

页数：7

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