ORGANIC SILANE COMPOUND FOR FORMING SI-CONTAINING FILM BY PLASMA CVD AND METHOD FOR FORMING SI-CONTAINING FILM
申请人:Hamada Yoshitaka
公开号:US20100137626A1
公开(公告)日:2010-06-03
An organic silane compound for forming a Si-containing film by plasma CVD is provided. The silane compound contains 2 or more silicon atoms bonded by an intervening straight chain or branched oxygen-containing hydrocarbon chain having 4 to 8 carbon atoms containing a bond represented by C
p
—O—C
q
wherein p and q independently represent number of carbon atoms with the proviso that 2≦p≦6 and 2≦q≦6 and the carbon chains do not contain an unsaturated bond which conjugates with the oxygen atom, wherein all of the 2 or more silicon atoms has 1 or more hydrogen atom or an alkoxy group having 1 to 4 carbon atoms.
MONOMERS AND POLYMERS CARRYING IMIDAZOLE AND BENZIMIDAZOLE GROUPINGS, AND PROTON EXCHANGE MEMBRANE CONTAINING THE SAME FOR THE PRODUCTION OF A FUEL CELL
申请人:Glipa Xavier
公开号:US20100151351A1
公开(公告)日:2010-06-17
The invention relates to a monomer (
6, 14
) carrying an imidazole-type heterocycle (
3
). According to the invention, the chemical structure of said monomer (
6, 14
) comprises at least one unit of formula (I) wherein R1 comprises an alkenyl grouping and R2 comprises a grouping for protecting one of the nitrogen atoms of the heterocycle. The invention also relates to a monomer carrying a benzimidazole-type heterocycle, and to protected polymers obtained from said monomers, deprotected polymers produced by the protected polymers, a proton exchange membrane based on deprotected polymers, and a fuel cell provided with said membrane. Furthermore, the invention relates to methods for producing the above-mentioned monomers and polymers.
Composition of vinyl ether group-containing (meth) acrylic acid ester and production method thereof
申请人:NIPPON SHOKUBAI CO., LTD.
公开号:US20020143120A1
公开(公告)日:2002-10-03
It is an object of the present invention to provide a vinyl ether group-containing (meth)acrylic ester, which has both radical polymerizability and cation polymerizability, improved in storage stability and stability in handling without impairing its polymerizability or, in other words, provide a stabilized vinyl ether group-containing (meth)acrylic ester. Another object is to provide a method of producing a stabilized vinyl ether group-containing (meth)acrylic ester composition. A further object is to provide a method of stably handing, a method of economically and stably producing and a method of purifying a vinyl ether group-containing (meth)acrylic ester.
A vinyl ether group-containing (meth)acrylic ester composition which comprises a radical polymerization inhibitor and a vinyl ether group-containing (meth)acrylic ester represented by the following general formula (1):
CH2=CR1-COO—R2-O—CH═CH—R3 (1)
in the formula, R1 represents a hydrogen atom or a methyl group, R2 represents an organic residue and R3 represents a hydrogen atom or an organic residue.
Ring-closing metathesis of α-ester-substituted enol ethers: application to the shortest synthesis of KDO
作者:Koen F.W Hekking、Floris L van Delft、Floris P.J.T Rutjes
DOI:10.1016/s0040-4020(03)00819-6
日期:2003.8
Ring-closing metathesis reactions of alpha-ester-substituted enol ethers are described. In the case of unsubstituted terminal olefins, isomerization prior to cyclization was observed as an undesired side reaction, which could not be completely inhibited. Furthermore, this methodology was applied to a formal synthesis of KDO, which now represents the shortest synthetic pathway to KDO and its deoxy analogue. Interestingly, in this route olefin isomerization was not observed, presumably due to the increased steric environment of the double bond. Finally, an efficient two-step conversion to transform an alcohol into an alpha-alkoxy acrylate is also described. (C) 2003 Elsevier Ltd. All rights reserved.
Composition of vinyl ether group containing (meth)acrylic acid ester and production method thereof