Electrochemical Synthesis of Organic Polysulfides from Disulfides by Sulfur Insertion from S
<sub>8</sub>
and an Unexpected Solvent Effect on the Product Distribution
作者:Jan Fährmann、Gerhard Hilt
DOI:10.1002/chem.202101023
日期:2021.8.2
An electrochemical synthesis of organic polysulfides through sulfur insertion from elemental sulfur to disulfides or thiols is introduced. The highly economic, low-sensitive and low-priced reaction gives a mixture of polysulfides, whose distribution can be influenced by the addition of different amounts of carbon disulfide as co-solvent. To describe the variable distribution function of the polysulfides
介绍了通过从元素硫插入硫到二硫化物或硫醇来电化学合成有机多硫化物。这种高度经济、低敏感性和低成本的反应得到多硫化物的混合物,其分布可以通过添加不同量的二硫化碳作为共溶剂来影响。为了描述多硫化物的可变分布函数,引入了一个新参数“多硫化物中吸光度平均硫含量”(SAP),并根据高分子化学中使用的“数均摩尔质量”进行定义。使用不同体积分数的二硫化碳合成各种有机多硫化物,并通过定量13 C NMR 测定每种多硫化物的产率。此外,通过使用两种对称的二硫化物或二硫化物和硫醇作为起始原料,可以获得对称和不对称多硫化物的混合物。
TRIPHENYLBORON COMPOUND-CONTAINING ANTIFOULING COATING COMPOSITION HAVING IMPROVED STABILITY, ANTIFOULING AGENT SET USED THEREFOR, AND METHOD FOR SUPPRESSING/CONTROLLING DECOMPOSITION OF TRIPHENYLBORON COMPOUND
申请人:CHUGOKU MARINE PAINTS, LTD.
公开号:EP2161318A1
公开(公告)日:2010-03-10
An object of the present invention is to provide an antifouling coating material composition in which, though containing a triphenylboron compound as an antifouling agent, the triphenylboron compound is inhibited from being decomposed in production and long term storage and which is excellent in a storage stability and a static antifouling property of an antifouling coating film obtained therefrom.
The antifouling coating material composition of the present invention comprises at least (A) a coating film-forming resin and (B) a triphenylboron-amine complex (b1) as an antifouling agent, and it further comprises (C) an amine compound other than the triphenylboron-amine complex (b1) described above as a decomposition inhibitor for the above compound (b1). A content of the amine compound (C) described above is preferably a proportion of 1.0 to 210 parts by weight per 100 parts by weight of the component (b1).