Monte Carlo simulation of diepoxides and monoepoxides cured with amines

doi:10.1002/polb.10248

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/44200

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題名:	Monte Carlo simulation of diepoxides and monoepoxides cured with amines
作者:	Cheng, kuo-chung;Don, trong-ming;Rwei, syang-peng;Li, yu-ching;Duann, yen-fang
貢獻者:	淡江大學化學工程與材料工程學系
關鍵詞:	Amines;Computer simulation;Curing;Gelation;Gels;Molecular weight;Molecular weight distribution;Monte Carlo methods;Reaction kinetics;Sols;Cycle rank;Diamine;Diepoxides;Gel fraction;Molar mass distribution;Monoepoxides;Epoxy resins
日期:	2002-09
上傳時間:	2013-06-13 11:29:10 (UTC+8)
出版者:	Hoboken: John Wiley & Sons, Inc.
摘要:	The diepoxide–monoepoxide–diamine curing systems are investigated with a Monte Carlo simulation. The dependence of the molecular weight distribution (MWD), gel fraction, and cycle rank of the polymers on the differences in the epoxy reactivities and the contents of the monoepoxide as a reactive diluent are discussed. Before gelation, the MWD of the curing systems with a lower content of the monoepoxide is broader than the MWD of the curing systems with a higher content, and it leads to a lower critical conversion. The gel fraction and cycle rank of the polymers decrease with an increasing amount of the diluent. Even fully cured, the system with a 0.6 epoxy molar fraction of the monoepoxide still has a large fraction of sol, about 49%. Although the various reactivities of the monoepoxide result in different ways of forming gels during curing, the final gel fractions are always near 100% as long as the epoxy molar fraction of the diluent is no more than 0.2. The profiles of the molecular weights of the polymers calculated by the model are in agreement with the experimental data. © 2002 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 40: 1857–1868, 2002
關聯:	Journal of Polymer Science, Part B: Polymer Physics 40(17), pp.1857-1868
DOI:	10.1002/polb.10248
顯示於類別:	[化學工程與材料工程學系暨研究所] 期刊論文

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