Assertion: polymer's structure | /r/HasProperty | arrived
Facets:
value: by reacting bisphenol a
type: MANNER
Source sentences:
text: It has exceptional stiffness, mainly by virtue of having more aromatic rings incorporated into the polyester chain: This structure is arrived at by reacting bisphenol A, an aromatic derivative of benzene, with phosgene, a highly reactive and toxic gas.