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TMS is a contaminant in the atmospheres of spacecraft, where it arises from the degradation of silicone-based materials. [5] Specifically, it is the volatile product from the hydrolysis of polydimethylsiloxane, which are generally terminated with trimethylsilyl groups:
The original coral-colored Silly Putty is composed of 65% dimethylsiloxane (hydroxy-terminated polymers with boric acid), 17% silica (crystalline quartz), 9% Thixatrol ST (castor oil derivative), 4% polydimethylsiloxane, 1% decamethyl cyclopentasiloxane, 1% glycerine, and 1% titanium dioxide. [6] Silly Putty flowing through a hole
Polydimethylsiloxane (PDMS), also known as dimethylpolysiloxane or dimethicone, is a silicone polymer with a wide variety of uses, from cosmetics to industrial lubrication and passive daytime radiative cooling. [1] [2] [3] PDMS is particularly known for its unusual rheological (or flow) properties.
Polydimethylsiloxane is a prevalent siloxane. In organosilicon chemistry, a siloxane is an organic compound containing a functional group of two silicon atoms bound to an oxygen atom: Si−O−Si. The parent siloxanes include the oligomeric and polymeric hydrides with the formulae H[OSiH 2] n OH and [OSiH 2] n. [1]
Polymethylhydrosiloxane (PMHS) is a polymer with the general structure [−CH 3 (H)Si−O−].It is used in organic chemistry as a mild and stable reducing agent easily transferring hydrides to metal centers and a number of other reducible functional groups.
The Michigan Court of Appeals said the state's Child Protection Law does not cover the specific sex abuse allegations made against a mother. Michigan Court of Appeals: Judge, MDHHS improperly ...
The hospital opened in May 1986 and was the first hospital opened by the Michigan Department of Corrections. [1] The facility is named after Dr. Duane Leonard Waters, who worked with the Michigan Corrections Commission for 25 years to modernize health care for Michigan prisons and was an influential advocate of the hospital being built. [2]
SOUTHFIELD, Michigan (Reuters) - Two election officials in a small Michigan town have been stripped of their duties overseeing Tuesday's U.S. presidential election after they vowed to go ahead ...