Studies of Crosslinked 4-tert-Butylstyrene-Poly (cis-1, 4-butadiene)-Divinylbenzene Resins for Oil Absorbency

摘要

A series of crosslinked 4-tert-butylstyrene-poly (cis-1, 4-butadiene)-divinylbenzene resins were preparedrnby solution polymerization. The absorbency of oil-like solvents, oil retention, deswelling and regenerationrnwere investigated for the resins. The oil absorbency sequence of the resins was Chloroform (32.17g/g) >rnStyrene (25.81g/g) > Toluene (17.63g/g) > Xylene (17.49g/g) > Cyclohexane (16.49g/g). Thernoil-absorptive resins had high oil retention, almost all over 90%. The deswelling was only connected withrnthe kinds of solvents, less related to the synthetic conditions. The oil-absorptive resins could bernregenerated for many times, moreover their oil absorbency increased after several cycles of swelling andrndeswelling.