Petre, Alkaline oxidation of hydrosulfide and methyl mercaptide
by iron/cerium oxide-hydroxide in presence of dissolved oxygen.
Carotenuto, "Synthesis of polymer-embedded metal, semimetal, or sulfide clusters by thermolysis of mercaptide
molecules dissolved in polymers," Recent Patents on Materials Science, vol.
De Petrocellis et al., "Synthesis of molecular gold clusters with luminescence properties by mercaptide
thermolysis in polymer matrices," International Journal ofNanoscience, vol.6, no.1, pp.65-69, 2007.
Relative nucleophilic reactivities of amino groups and mercaptide
ions in addition reactions with [alpha], [beta]-unsaturated compounds.
Moreover, the sulfhydryl group of cysteine moiety of glutathione has a high affinity for metals, forming thermo dynamically stable mercaptide
complexes with several metals, e.g., Cd.
organotin 1 (MOT1) with tin content of 13.9-15.4% and sulfur content of 7.1-8.4% is widely applied in extruded PVC products while mercaptide
organotin 2 (MOT2) consists of 65%-75% bis (2-ethylhexyIthioglycolate) dimethyltin and 25%-35% tris (2-ethylhexylthioglycolate) methyltin.
Thermolite[R] 140 butyltin mercaptide
is specifically designed for coextruded siding, profile, and fence substrates, and more demanding pipe applications where good color-hold and stability are needed.
Name Type Manufacturer Organic calcium KGF-[R.sub.6]H Hangzhou Sanye Auxiliary Co., complex China Organic calcium KGF-[R.sub.6]J Hangzhou Sanye Auxiliary Co., complex China Dibutvltin dilaurate Analytically pure Shanghai Shisihewei Chemical Co., China Mercaptan organotin ZT-237 Beijing Zhenghen Chemical Co., compound China Methyltin mercaptide
TM-181-FS Rohm and Haas Co., USA Preparation of Films
* Thermolite 140 butyltin mercaptide
heat stabilizer is designed for PVC formulations for coextruded siding, profile, and fence substrates, and for pipe applications in which good early color and dynamic stability are important.
To prepare mercaptide-polymer blends, the mercaptide
powder was dissolved or dispersed in chloroform and mixed with a chloroform solution of polystyrene (Aldrich, [M.sub.w] = 230,000 g/mol).
These new grades of alkyl tin mercaptide
stabilizers eliminate the chatter, or vibrations, that occur when an extrusion line is running at high speed.
Available in liquid or solid form, either mercaptide
or sulfur-free, products include butyltins for pipe, siding, window profiles and other applications; as well as octyltin mercaptide
and methyltin mercaptides
for FDA bottles and sheet.