国立研究開発法人量子科学技術研究開発機構National Institutes for Quantum and Radiological Science and Technology ◇ 370–1292 群馬県高崎市綿貫町1233 ◇ 1233 Watanuki, Takasaki-shi Gunma Pref. 370–1292, Japan
高分子への放射線照射効果は，1940年代後半に新たな高分子改質法として注目を集め，その現象解明や評価法の確立，工業への応用が活発に進められ，現在では多数の実用化例につながっている。本章では，その歴史的経緯と共に放射線照射によって生じる特徴的な現象及びその評価法を概観する。
Effect of ionizing radiation for polymers has been paid attention to from 1940’s as newly polymer modification method. The elucidation of phenomena in polymers induced by ionizing radiation, the establishment of evaluation method of radiation effects, and the industrial application have been developed remarkably and today these achievements have led to many practical applications. In this chapter, we took a brief look at historical story about ionizing radiation effects for polymers, and overviewed characteristic phenomena induced by ionizing radiation and the analysis method.
Key words: radiation degradation; radiation crosslinking; gel–sol analysis; radiation-induced graft polymerization
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