title: Heterocyclic methacrylates for clinical applications. III. Water absorption characteristics.
abstract: The water absorption and desorption behaviour of poly(isobornyl methacrylate) and poly(tetrahydropyran-2-ylmethyl methacrylate) obeyed diffusion laws on repeated absorption/desorption cycles. However, the polymers of 2,3-epoxypropyl, tetrahydrofurfuryl and tetrahydropyranyl methacrylates did not obey diffusion laws, did not equilibrate after 2 yr immersion in water and exhibited very high uptake values (30-90%). For 2,3-epoxypropyl methacrylate, the sample disintegrated. A clearly detailed structure of the heterocyclic ring is critical. The use of these monomers in room temperature polymerizing poly(ethyl methacrylate)/monomer systems generally reflected the behaviour of the related homopolymers.
authors.affiliation: Dental School of the Royal London Hospital Medical College, UK.
authors.forename: M P
authors.initials: MP
authors.lastname: Patel
authors.forename: M
authors.initials: M
authors.lastname: Braden
mesh_terms: D000042:Absorption; D001672:Biocompatible Materials; D003764:Dental Materials; D003819:Denture Bases; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D015394:Molecular Structure; D014867:Water
chemical_list: D001672:Biocompatible Materials; D003764:Dental Materials; D008689:Methacrylates; D014867:Water