Assertion: polymer | /r/HasProperty | glassy
Facets:
value: at room temperature
type: OTHER
Source sentences:
text: Below T g , molecular motions are frozen and polymers are brittle and glassy.
text: Some polymers, such as polystyrene, are glassy and transparent at room temperature, as well as being thermoplastic.
text: All polymers are glassy below a characteristic glass transition temperature (T g ), which ranges from as low as −125 °C (−195 °F) for an extremely flexible molecule such as polydimethyl siloxane (silicone rubber) to extremely high temperatures for stiff, bulky molecules.