학회 |
한국고분자학회 |
학술대회 |
2003년 봄 (04/11 ~ 04/12, 연세대학교) |
권호 |
28권 1호, p.296 |
발표분야 |
고분자 합성 |
제목 |
Synthesis and Free Radical Polymerization of o-(2,2,3-Tricyano-3-carbomethoxycyclopropyl)phenoxyethyl (meth)acrylates |
초록 |
It is well known that crystalline polymers such as poly(vinylidene fluoride) with a large dipole moment exhibit the piezoelectric effects. Amorphous polymers with high concentrations of dipole moments also show piezoelectric properties after poling. A potentially piezoelectric polymer must have a large concentration of dipoles. We have recently proposed that three- and four-membered rings with several cyano substituents held rigidly in alignment will have large dipole moments and these polymers are potential piezoelectric materials. The present report describes the synthesis and free radical polymerization of o-(2,2,3-tricyano-3-carbomethoxycyclopropyl)phenoxyethyl (meth)acrylates (5a-b). We selected tricyanocyclopropyl group as a piezoelectric chromophore because it has larger dipole moment and expected to exhibit higher piezoelectric activity. To verify this fact, molecular modeling calculations were performed on the compound 5 using atom superposition and electron delocalization molecular orbital (ASED-MO). Monomer |
저자 |
이주연;방한배 |
소속 |
인제대 |
키워드 |
Piezoelectric effect; Tricyanocyclopropyl; Poly(meth)acrylates; ASED-MO; Free radical polymerization
|
E-Mail |
|