Abstract
Different hyperbranched polyester were synthesized by a simple one-pot melt polymerization method.The acid value,hydroxyl value and NMR were detected, we discussed the effect of proportion of DMPA,reaction temperature, vacuum level and vacuum time on acid value, hydroxyl value.The results show that the high efficient hyperbranched dispersant can be synthesized by the mass ratio of DMPA is 42.14%, vacuum time is 6h, vacuum degree is 30 kPa, and the stability kinetic is under 0.2.
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