Assertion: polymer's group | /r/HasProperty | vinyl
Facets:
value: usually
type: DEGREE
Source sentences:
text: This lack of carbon in the polymer backbones makes polysiloxanes into unusual “inorganic” polymers—though in most members of the class two organic groups, usually vinyl (CH 2 ), methyl (CH 3 ), or phenyl (C 6 H 5 ), are attached to each silicon atom.