Papers by Keyword: Maleic Rosin

Abstract: Renewable products have received much attention. Maleic rosin (MR) was reacted with hydroxyethyl methacrylate (HEMA) to form a macromonomer (MRH) containing double bond which could polymerize with styrene (St) or methyl methacrylate (MMA) through radical polymerization in the toluene. The copolymers MRH-St and MRH-MMA were characterized with infrared spectroscopy (IR), thermogravimetric analysis (TGA) and nuclear magnetic hydrogen resonance (¹HNMR). The results showed that both of the copolymers were prepared successfully. As the increase of MRH content in the copolymer, the thermal stability of the copolymer was increased, in additional, it become dissolved in the toluene but swelled in it when more level of the MRH was incorporated.

Abstract: In this paper, allyl maleated rosin ester was synthesized by the esterification of maleic rosin and allyl alcohol with catalyst. And then a new waterborne paper-plastic composite adhesive was prepared through the semi-continuous emulsion polymerization method with allyl maleated rosin ester, butyl acrylate, vinyl acetate and acrylic acid as raw materials. The product of esterification was analyzed by IR spectra, and its acid value was determined too. Polymer was analyzed by DSC and IR spectra and its T-style peel strength was determined. The adsorption effect of adhesives to ink was also tested. The results showed that this paper-plastic composite adhesive had good adhesive properties: excellent compatibility with the ink, longer stability period, and low cost.