Azobisisobutyronitrile → HCID 23295550, compound

Participants

Reaction Steps

In 400 mL of isopropanol, 84.1 g of p-hydroxystyrene, 20.8 g of styrene and 12.8 g of tert-butyl acrylate were dissolved, then 14.1 g of azobisisobutylonitrile was added and the solution reacted at 80° C. for 6 hours under nitrogen gas flow. After the reaction, said reaction liquid was poured into 10 L of water for precipitation, followed by filtering off deposited crystal, drying under reduced pressure to obtain 95 g of poly(p-hydroxystyrene/styrene/tert-butyl acrylate) as a pale brown powder crystal. The copolymer obtained was named polymer 1. A composition ratio of p-hydroxystyrene unit, styrene unit and tert-butyl acrylate unit in polymer 1 was found to be about 7:2:1 from the measurement results by 13CNMR. Weight average molecular weight (Mw) of this copolymer was about 10,000 and distribution (Mw/Mn) thereof was about 1.9 from the measurement results by gel permeation chromatography using polystyrene as a standard.

Provenance & Evidence