Polydimethylsiloxane consists of fully methylated linear siloxane polymers containing repeating units of the formula [(CH3)2SiO] with trimethylsiloxy end-blocking units of the formula (CH3)3SiO-. The additive is produced by hydrolysis of a mixture of dimethyldichlorosilane and a small quantity of trimethylchlorosilane.
Applications:
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