The ‘Baylis - Hillman Reaction’ mechanism and applications revisited
摘要:
It is shown that reaction of aryl, benzyl, alkyl and functionalised alkyl acrylic esters with benzaldehyde, in the presence of 1,4-diazabicyclo[2.2.2] octane, strongly depends upon the electronic and steric effects of the ester part. This influence is also observed in condensation of furfuraldehyde. Moreover, for the first time, it is shown that the overall condensation is equilibrated.
The ‘Baylis - Hillman Reaction’ mechanism and applications revisited
摘要:
It is shown that reaction of aryl, benzyl, alkyl and functionalised alkyl acrylic esters with benzaldehyde, in the presence of 1,4-diazabicyclo[2.2.2] octane, strongly depends upon the electronic and steric effects of the ester part. This influence is also observed in condensation of furfuraldehyde. Moreover, for the first time, it is shown that the overall condensation is equilibrated.
Coating compositions for preventing adhesion of aquatic organisms
申请人:KANSAI PAINT CO. LTD.
公开号:EP0327021A2
公开(公告)日:1989-08-09
Disclosed is a coating composition for preventing adhesion of aquatic organisms, the composition containing as a vehicle component a copolymer prepared by copolymerizing about 5 to about 85% by weight of (A) a monohydric and/or polyhydric phenol ester of acrylic or methacrylic acid; about 15 to about 75% by weight of (B) an ethylenically unsaturated monomer having a soluble parameter of about 8.0 to about 9.5 and a glass transition temperature of about 0°C or higher; and about 0 to about 50% by weight of (C) a water-soluble, ethylenically unsaturated monomer containing carboxyl group or amino group, based on the total monomer components.
Positive Charge Control Resin for Electrophotographic Functional Component Parts, Developing Roller, and Electrophotographic Apparatus
申请人:Yoshida Tatsurou
公开号:US20080247787A1
公开(公告)日:2008-10-09
To provide a positive charge control resin with which an electrophotographic functional component part coming into contact with a toner can be made chargeable in a polarity reverse to the polarity of the toner, and which has superior dispersibility in, and compatibility with, a main binder. The present invention is a positive charge control resin having a copolymer obtained by polymerizing specific acrylate or methacrylate monomer, amino-group-containing monomer(s) and carboxyl-group-containing monomer(s) as copolymerization components.