Abstract
In this paper, Taken the methyl hydroxypropyl acrylate (HPMA) as functional monomer, a novel poly (butyl acrylate)-poly (methyl methacrylate-methyl hydroxypropyl acrylate) (PBA-P(MMA-HPMA)) core-shell latex particles were synthesized by the method of pre-emulsion semi-continuous seeded emulsion polymerization. The structure and morphology of core-shell latex particles were characterized by the way of laser particle size analyzer, transmission electron microscope (TEM), fourier transform infrared spectrometer (FTIR), nonaqueous acid-base titration, differential scanning calorimetry (DSC). Experimental results showed that the average size of PBA-P(MMA-HPMA) core-shell latex particles was 340nm and the average size of PBA core latex particles was 270nm. The functional monomer HPMA really participated in shell layer copolymerization, when the dosage of HPMA was 8% of shell monomer, HPMA content in the shell was the largest and reached 2.16%. Tg value of the copolymer P(MMA-HPMA) was firstly increased and then reduced with the increasing of HPMA content in shell.
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