【摘要】 本文研究了国产717型三甲胺Br^-型,HSO₄^-型,NO₃^-型绝干、含水及相应浸泡于HBr,H₂SO₄,HNO₃等溶液树脂的γ辐射稳定性。研究表明HSO₄^-型阴离子交换树脂的辐射稳定性最差。γ辐照时,水的存在能加剧C—N键的断裂,而7NHNO₃显著抑制C—N键断裂,OH自由基与C—N键断裂无关但与形成弱碱性交换基团有关。H原子可能影响C—N键断裂后两自由基的重合作用。γ辐照后,残渣主要成份为三甲胺盐并杂有二甲胺盐,二甲胺的产率与树脂的状态,所处的介质密切有关。在硝酸介质中,二甲胺的产率剧烈减低。更多还原

【Abstract】 The y-radiolys:s of 717-trimethyl anionite Br type, HS04- type and NO3- type in dry, wet form or dipped in Corresponding HBr, H2SO4 and HNO3 solutions has been investigated.It shows that anionite HS04- type is more sensitive to y-radiation than the other two. The presence of water increases the rupture of C-N bond, while 7N HN03 can remarkably inhibit the break of C-N bond. There is no relationship between the rupture of C-N bond and OH free radical which can promote the production of weak basic exchangable capacity. H atom may hinder the recombination of radicalsformed after rupture of -C-N- bond. The main composition of residue is trimethyl-amine salt mixed with some amount of di methylamine salt. The yield of dimethyl-amine depends on the state of resin and medium. In nitric acid mediam, the yield of dimethylamine is greatly reduced.更多还原