ZHOU Jian, XUE Teng, TANG Erjun, et al. Controlling of molecular weight of polymers by ATRP in ionic liquid[AMIM]Cl[J]. CIESC Journal, 2016, (S2): 171-175.
ZHOU Jian, XUE Teng, TANG Erjun, et al. Controlling of molecular weight of polymers by ATRP in ionic liquid[AMIM]Cl[J]. CIESC Journal, 2016, (S2): 171-175.DOI: 10.11949/j.issn.0438-1157.20161130.
The narrow molecular weight distribution of poly methyl methacrylate (PMMA) was synthesized by atom transfer radical polymerization (ATRP) in the ionic liquid 1-allyl-3-methylimidazolium chloride ([AMIM]Cl). Dibromo ethyl isobutyrate(2-Ebib) was used as the initiator and CuBr/ethanediamine was the catalytic system.Polymerization conditions were explored on molecular weight and distribution of PMMA.Molecular weight size and molecular weight size distribution were determined by GPC.The results showed that the molecular weight size of PMMA was mainly controlled by reaction time and the molecular weight size distribution of PMMA was controlled by catalyst system.Design of the molecular weight size and distribution of polymer could carry out by optimizing the reaction conditions to achieve precise control of polymers molecular weight.It has a perfect application potential in the field of chemical medicine.