Ion irradiation of poly(methyl methacrylate) for precise control of electrical and optical properties

Abstract

Ion irradiation with Xe+ has been utilized to produce electrical conductivity in PMMA, as measured using a four‐point in‐line probe. Incident ion beam energy and current density have been varied to investigate their effect on electrical conductivity and optical absorbance of the samples after irradiation. Results support the premise that selection of beam parameters that maximize the ratio of energy transfer‐producing displacements to energy transfer‐producing ionization maximizes the ratio of induced conductivity to induced absorbance in the irradiated samples. Conductivity versus ion dose has also been shown to be well estimated using a damage trial model. © 1994 John Wiley & Sons, Inc.

Role of structural modification on the electrical properties of poly(ethylene terephthalate) irradiated with 90‐MeV carbon ion beam

“…Poly(ethylene terephthalate), generally known as PET, is widely used in numerous commercial applications because of its superior mechanical strength, good heat and chemical resistance, dimensional stability, flex-crack resistance properties, and optical clarity. It is now a well-established fact that irradiation of polymers with low linear energy transfer radiation as well as swift heavy ions leads to a wide variety of physicochemical changes [1][2][3][4][5][6]. The chemical structure modifications are manifested in terms of bond breaking, scission, cross linkages, carbon cluster formation, formation of allenes/alkynes, and volatile gaseous species [7].…”