聚合物—皮革复合材料的研究Ⅰ．丙烯酸酯单体在铬鞣猪皮中的聚合过程

Studies on Polymer-Leather Composites Ⅰ. Process of Selected Acrylate Monomers by Polymerkation in to Chrome-Tanned Figskin

采用Ｋ＿２Ｓ＿２Ｏ＿８－ＮａＨＳＯ＿３引发体系，研究了丙烯酸乙酯（ＥＡ）、甲基丙烯酸丁酯（ＢＭＡ）及其二元混合单体（ＥＡ－ＢＭＡ）在铬鞣猪皮中的聚合过程，考察了反应温度、时间、单体浓度和铬鞣猪皮的部位不同对反应的影响，初步探讨了改性过程的反应机理。

Three acrylate monomer systems that were ethyl acrylate(EA),butyl methacrylate(BMA),and the comonomer(EA-BMA), were investigated by redox emulsion polymerimtion into the fibrous matrix of chrome-tanned pigskin over a wide range of composition. Polymer not bound to the matrix was seporated by ethyl acetate extractions. Observed orders in bound rate were EA>EA-BMA >BMA and the specific bound efficiencies(ε_b)increased with concentration of the monomers. A domi-nant bound mechanism was tentatively suggested and discussed.