New vinyl ester resins based on rosin for coating applications
New vinyl ester resins based on rosin for coating applications
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DOI：
10.1016/j.reactfunctpolym.2006.06.002
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发表时间：
2006-12-01
影响因子：
5.1
通讯作者：
Farag, Reem K.
中科院分区：
文献类型：
--
作者：
Atta, Ayman M.;El-Saeed, Shymaa M.;Farag, Reem K.
以松香酸为双烯单体，马来酸酐（MA）或丙烯酸（AA）为亲双烯体，通过松香加成反应合成松香基乙烯基酯树脂。将所得加成物马来海松（MPA）和丙烯海松（阿帕）用于制备乙烯基酯树脂。MPA和阿帕与EG反应，然后在NaOH作为催化剂的存在下与环氧氯丙烷反应以制备环氧树脂。在亚磷酸三苯酯催化剂存在下，末端环氧基团与丙烯酸和甲基丙烯酸反应，生成二乙烯基酯树脂。所得乙烯基酯树脂的化学结构通过H-1 NMR分析确认。使用自由基引发剂和促进剂在35至55 ° C的温度下评价固化的聚乙烯基酯树脂和苯乙烯。用DSC研究了VE树脂与苯乙烯的固化行为。通过测试其机械性能和耐化学性，评价了所制备的VE固化树脂在钢铁涂料领域中的应用。(c)2006年由Elsevier B. V.出版
Vinyl ester resins based on rosin were prepared from rosin adducts using rosin acid as diene and maleic anhydride (MA) or acrylic acid (AA) as dienophile. The produced adducts, maleopimaric (MPA) and acrylopimarie (APA), were used to prepare vinyl ester resins. MPA and APA were reacted with EG followed by reaction with epichlorohydrine in the presence of NaOH as a catalyst to produce epoxy resins. The terminal epoxy groups were reacted with acrylic and methacrylic acid in the presence of triphenyl phosphite as a catalyst to produce divinyl ester resins. The chemical structures of the resulting vinyl ester resins were confirmed by H-1 NMR analysis. The curing exotherm vinyl ester resins and styrene was evaluated at temperatures from 35 to 55 degrees C using free radical initiator and accelerator. The curing behaviors of cured VE resins with styrene were evaluated by DSC measurements. The prepared VE curable resins were evaluated in the field of steel coating by measuring their mechanical properties and chemical resistance. (c) 2006 Published by Elsevier B.V.