Isobutyl Methacrylate → isobutylmethacrylate 2-ethyl-hexylmethacrylate N,N-dimethylacrylamide

HRID 1088591

반응식

HRID 1088591 반응식
[CH2:1]([O:5][C:6](=[O:10])[C:7]([CH3:9])=[CH2:8])[CH:2]([CH3:4])[CH3:3].[CH2:11]([CH:13]([CH2:21][CH2:22][CH2:23][CH3:24])[CH2:14]OC(=O)C(C)=C)[CH3:12].[CH3:25][N:26]([CH3:31])[C:27](=[O:30])[CH:28]=[CH2:29]>>[CH2:1]([O:5][C:6](=[O:10])[C:7]([CH3:9])=[CH2:8])[CH:2]([CH3:4])[CH3:3].[CH2:11]([CH:13]([CH2:21][CH2:22][CH2:23][CH3:24])[CH2:14][CH:8]=[C:7]([CH3:9])[C:6]([O-:5])=[O:10])[CH3:12].[CH3:25][N:26]([CH3:31])[C:27](=[O:30])[CH:28]=[CH2:29]

참가 물질

4

반응물 3

HCID 7352Isobutyl MethacrylateHCID 127132-Ethylhexyl methacrylateHCID 17587N,N-Dimethylacrylamide

생성물 1

HCID 86744280isobutylmethacrylate 2-ethyl-hexylmethacrylate N,N-dimethylacrylamide

실험 절차

A 60:30:10 (weight percent) isobutylmethacrylate/2-ethyl-hexylmethacrylate/N,N-dimethylacrylamide copolymer is prepared as follows. Isobutylmethacrylate, 2-ethylhexylmethacrylate, and N,N-dimethylacrylamide are weighed out (relative weight ratios of 60:30:10) and added to a four neck flask fitted with an argon sparge, mechanical stirrer, thermometer and condenser. Toluene is then added to the flask to get a final monomer concentration of 25.0 weight percent. The reaction flask is placed in a 60° C. water bath and the reaction mixture is sparged with argon for two hours while stirring. After two hours, azobisisobutyronitrile ("AIBN") is added to the reaction flask in an amount sufficient to get a final initiator concentration of 0.25 weight percent. The reaction is then stirred for two hours, after which time the reaction flask is removed from the water bath and the reaction mixture is poured into a polyethylene tray, air dried, and dried in a vacuum oven at 120° C. Optionally, after two hours of stirring, an additional 0.25% initiator is added and the reaction continued for an additional hour. It is then dried as stated. If it is desired to increase or decrease the polymer molecular weight this is done by altering the level of initiator used, or by adding a chain transfer agent (such as decanethiol) to the reaction mixture. The glass transition temperature of this copolymer is calculated to be approximately 38° C.

후처리

  1. additionadded to a four neck flask
  2. customfitted with an argon
  3. customsparge
  4. additionToluene is then added to the flask

출처 및 근거

ORD 기록
ord-1d81f37a644848abbb1e4e91d2a9b02b
출처 데이터셋
uspto-grants-1990_10
특허 번호
US04963348

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