Methyl Methacrylate → Methyl 2-methylprop-2-enoate;styrene

Participants

Reaction Steps

A mixture consisting of 10.01 g of the PSt*-[1] obtained in Paragraph (1), 20.02 g of methyl methacrylate and 100 ml of toluene was subjected to a polymerization reaction under a nitrogen stream at 103° C. for 8 hours. After the reaction, the reaction mixture was poured into methanol and precipitated. The polymer deposited was collected by filtration and dried to obtain 24.17 g (yield 80.49%) of the objective block polymer as a white fibrous product. A GPC measurement revealed that this product had a number-average molecular weight of 61,020, a weight-average molecular weight of 147,251 and a degree of dispersion of 2.41. A 1H-NMR measurement using CDCl3 as a solvent for measurement revealed that the copolymer composition of this product was 63.33:36.67 as expressed in terms of styrene:methyl methacrylate ratio by weight.

Provenance & Evidence