As nouns the difference between methylpolysiloxane and dimethylsiloxane
is that methylpolysiloxane is polydimethylsiloxane while dimethylsiloxane is (organic chemistry) any siloxane of general formula [sio(ch3)2]n .
dimethylsiloxane
English
Noun
(organic chemistry) Any siloxane of general formula [SiO(CH3)2]n