Symmetry of chloronium ions from ionic reaction of chlorine, chlorine monofluoride gas, and chlorine monofluoride complex with terminal alkenes
作者:Dale F Shellhamer、Peter K Titterington、Victor L Heasley
DOI:10.1016/s0022-1139(03)00169-6
日期:2003.11
trifluorovinyl ether (4) with chlorine monofluoride (ClF) gas in aprotic solvent; and alkenes 2, 1H-perfluorohept-1-ene (3E), and 4 with chlorine (Cl2) in protic solvent were investigated. Regiochemical data from SN2-like ring-opening of the intermediate was used to predict the symmetry of the chloronium ion. The chloronium ions from perfluorohydroalkene 2 with two terminal hydrogens were found to be unsymmetrical
ZAPEVALOV, A. YA.;SALOUTINA, L. V.;KODESS, M. I.;KOLENKO, I. P., ZH. ORGAN. XIMII, 24,(1988) N 8, 1626-1633
作者:ZAPEVALOV, A. YA.、SALOUTINA, L. V.、KODESS, M. I.、KOLENKO, I. P.
DOI:——
日期:——
Polymer, top coating layer, top coating composition and immersion lithography process using the same
申请人:Hata Mitsuhiro
公开号:US20070155925A1
公开(公告)日:2007-07-05
A polymer, a top coating layer, a top coating composition and an immersion lithography process using the same are disclosed. The top coating layer polymer may include a deuterated carboxyl group having a desired acidity such that the top coating layer polymer may be insoluble with water and a photoresist, and soluble in a developer. The polymer may be included in a top coating layer and a top coating composition.
THERMOPLASTIC POLYMER COMPOSITION AND PROCESS FOR PREPARING THERMOPLASTIC POLYMER COMPOSITION
申请人:YANAGIGUCHI Tomihiko
公开号:US20110086983A1
公开(公告)日:2011-04-14
The object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a molded article, a laminated article, a hose for industrial use, a tube for industrial use, a fuel hose and a fuel tube comprising the thermoplastic polymer composition. Further object of the present invention is to provide a process for preparing a thermoplastic polymer composition. The thermoplastic polymer composition comprises a fluororesin (A) comprising a fluorine-containing ethylenic polymer (a) and a crosslinked fluororubber (B) in which at least a part of at least one kind of fluororubber (b) is crosslinked, and a weight ratio of the fluororesin (A) to the crosslinked fluororubber (B) is 85/15 to 40/60, a fuel permeation coefficient of a molded article obtained from the composition is not more than 40 g·mm/m
2
·day and a tensile modulus of elasticity of the molded article is not more than 400 MPa.