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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.
Hydrolysis of a silyldichloride can afford linear or cyclic products. Linear products are terminated with silanol groups: n R 2 Si(OH) 2 → H(R 2 SiO) n OH + (n − 1) H 2 O. Cyclic products have no silanol termini: n R 2 Si(OH) 2 → (R 2 SiO) n + n H 2 O. The linear products, polydimethylsiloxane (PDMS), are of great commercial value.
The ICD-10 Clinical Modification (ICD-10-CM) is a set of diagnosis codes used in the United States of America. [1] It was developed by a component of the U.S. Department of Health and Human services, [ 2 ] as an adaption of the ICD-10 with authorization from the World Health Organization .
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.
ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. [1]
Classification System Detail ICD-9-CM: Volumes 1 and 2 only. Volume 3 contains Procedure codes: ICD-10: The international standard since about 1998 ICPC-2: Also includes reasons for encounter (RFE), procedure codes and process of care
PDMS stamps are pieces of polydimethylsiloxane (PDMS), a silicone, that have been patterned usually against a master mold to form a relief pattern used in soft lithography. This PDMS stamp can be used in either its current form as a relief surface for techniques such as microcontact printing or can also be attached to an external source by ...
Trimethylsilanol is a weak acid with a pK a value of 11. [10] The acidity is comparable to that of orthosilicic acid, but much higher than the one of alcohols like tert-butanol (pK a 19 [10]). Deprotonation with sodium hydroxide gives sodium trimethylsiloxide. TMS reacts with the silanol groups (R 3 SiOH) giving silyl ethers.