Synthesis and cement performance of thermoresponsive core–shell microgel superplasticizers with size modulation
Four microgels (MG) with different carboxyl contents were designed and prepared by using two monomers of methacrylic acid (MAAc), the thermosensitive monomer N-isopropylacrylamide (NIPAM), and the crosslinker N,N′-methylenebisacrylamide (BIS). NH2-functionalized HPEG2400 (HPEG-NH2) was grafted onto the carboxyl groups...