title: Acyclic monoterpenes in tree essential oils as a shrinking agent for waste-expanded polystyrene.
abstract: We examined the dissolution of polystyrene (PS) into acyclic monoterpenes present in tree essential oils, to develop an environmentally friendly shrinking agent for waste-expanded polystyrene (EPS). The dissolving powers of geranyl acetate, geranylacetone, and geranyl formate [221.8-241.2 g PS (100 g solvent)(-1)] compared favorably with that of (R)-limonene [181.7 g PS (100 g solvent)(-1)]. Their favorable dissolving powers for PS can be explained by their flexible linear structures, which may be more accessible to the inside of bulk PS compared with cyclic monoterpenes. These acyclic monoterpenes and PS were recovered almost quantitatively by simple steam distillation of the PS solution.
authors.affiliation: Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, Kitami, Japan.
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Shimotori
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Hattori
authors.forename: Masakazu
authors.initials: M
authors.lastname: Aoyama
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Miyakoshi
mesh_terms: D028202:Abies / Q000737:chemistry; D039821:Monoterpenes / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D059027:Recycling / Q000379:methods*; D012997:Solvents / Q000737:chemistry*; D014783:Viscosity
chemical_list: D039821:Monoterpenes; D009822:Oils, Volatile; D011137:Polystyrenes; D012997:Solvents