BLOCH, R.;ABECASSIS, J., TETRAHEDRON LETT., 1982, 23, N 32, 3277-3280
作者:BLOCH, R.、ABECASSIS, J.
DOI:——
日期:——
Ether-containing cyclic structure-containing polymer, polymer composition for optical material, and molded article thereof, optical component and lens
申请人:Sakurai Seiya
公开号:US20110077372A1
公开(公告)日:2011-03-31
Disclosed is an ether-containing cyclic structure-containing polymer derived from a monomer represented by formula (1) below, or derived from a monomer represented by formula (1) below and a single or more species of cyclic olefinic monomer(s), having a refractive index of equal to or larger than 1.53 and an Abbe number of equal to or larger than 56. Each of R
11
to R
14
independently represents a hydrogen atom or a substituent, or R
11
to R
14
may bond with each other to form a cyclic structure; each of X and Y independently represents a substituted or non-substituted, carbon atom, oxygen atom, or sulfur atom; and m represents 0 or 1.
Degenerate thermal rearrangement of 1,3-dimethylenecyclopentane. Evidence for partially stereospecific biradical formation and closure in a 1,3 shift