Electronic and Radiation-Related Polymers

Radiation processing is widely employed in plastics engineering to enhance the physical properties of polymers, such as chemical resistance, surface properties, mechanical and thermal properties, particle size reduction, melt properties, material compatibility, fire retardation, etc.

Chemical reactions can be initiated by radiation at any temperature, under any pressure and in any phase (gas, liquid or solid) without the use of catalysts. The irradiation of polymeric materials with ionizing radiation (gamma rays, X rays, accelerated electrons, ion beams) leads to the formation of very reactive intermediates. These intermediates can follow several reaction paths, which result in rearrangements and/or formation of new bonds. The ultimate effects of these reactions can be the formation of oxidized products, grafts, scission of main chains (degradation) or cross-linking. The degree of these transformations depends on the structure of the polymer and the conditions of treatment before, during and after irradiation. Good control of all of these processing factors facilitates the modification of polymers by radiation processing.

Radiation Processing of Polymer Materials and its Industrial Applications systematically explains the commercially viable ways to process and use radiation-processed polymeric materials in industrial products. Modification in polymeric structure of plastic material can be brought either by conventional chemical means or by exposure to ionization radiation from ether radioactive sources or highly accelerated electrons. Increased utilization of electron beams for modification and enhancement of polymer materials has been in particular witnessed over the past 40 years. The electrical properties of polymers present almost limitless possibilities for industrial research and development. Organic electronic devices have applications in displays, photovoltaics, sensors, logic, lighting and radio-frequency identification tags. Their market is predicted to be more than $44 billion globally by 2018. Ferroelectric Polymers are a group of crystalline polar polymers which maintain a permanent electric polarization that can be reversed, or switche in an external electric field. Ferroelectric polymers, such as polyvinylidene fluoride(PVDF), are used in acoustic transducers and electromechanical actuators because of their inherent piezoelectric response, and as heat sensors because of their inherent pyroelectric response.

  • Radiation-sensitive and radiation-stabilized polymers
  • Polymers for microwave absorption
  • Polymer and organic electronics
  • Degradation
  • Photo-electro conductive polymers
  • Electro-optics and nonlinear optics
  • Dielectric, ferroelectric and electric applications of polymers
  • Bio-Related Polymers

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Electronic and Radiation-Related Polymers Conference Speakers