Synthesis of water-soluble hyperbranched polymer and its application in acrylic latex

• Published in: European polymer journal Vol. 42; no. 2; pp. 286 - 291
• Main Authors: Wang, Xiuxia, Lai, Guoqiao, Jiang, Zhigang, Zhang, Yifeng
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.02.2006; Elsevier
• Subjects: Acrylic latex; Applied sciences; Chemical modifications; Chemical reactions and properties; Emulsion polymerization; Exact sciences and technology; Organic polymers; Physicochemistry of polymers; Water-soluble hyperbranched polymer; Emulsion polymerization; Acrylic latex; Water-soluble hyperbranched polymer; Emulsion copolymerization; End group; Film; Composition effect; Maleic derivative copolymer; Butyl acrylate copolymer; Aliphatic polymer; Carboxyl group; Ionomer; Acrylic acid copolymer; Branched polymer; Ester polymer; Mechanical properties; Hardness; Experimental study; Methyl methacrylate copolymer; Esterification; Latex; Chemical modification; 2,5-Furandione(2,5-dihydro); Preparation; Prepolymer; Radical copolymerization
• ISSN: 0014-3057; 1873-1945
• DOI: 10.1016/j.eurpolymj.2005.08.001

A water-soluble hyperbranched polymer (WHBP), obtained from a second generation of hyperbranched polyester and maleic anhydride, was studied. Its effects on the properties of acrylic latexes, which were based on emulsion polymerization of butyl acrylate (BA), methyl methacrylate (MMA), acrylic acid (AA) and WHBP, and latex film were discussed. The characteristics of WHBP were determined by nuclear magnetic resonance spectroscopy (NMR), Fourier transform infrared (FTIR) and gel permeation chromatography (GPC). Particle size and morphology of latex particles were confirmed by dynamic light scattering (DLS) and transmission electron microscope (TEM). The investigation showed that WHBP could be used in emulsion polymerization, and that latex of poly(BA-MMA-WHBP) was more stable than that of poly(BA-MMA-AA). The hardness of latex film increased from 2B to HB when WHBP was used.