同位素
同位素
동위소
ISOTOPES
2015年
3期
178-182
,共5页
放射源制备%无皂微乳液%反相微乳液聚合%甲基丙烯酸甲酯
放射源製備%無皂微乳液%反相微乳液聚閤%甲基丙烯痠甲酯
방사원제비%무조미유액%반상미유액취합%갑기병희산갑지
preparation of radioactive source%soap-free microemulsions%polymerization of inverse microemulsions%methyl methacrylate
采用微乳液聚合方法制备放射源。选择甲基丙烯酸甲酯(MMA)/甲基丙烯酸羟乙酯(HEMA)/水(H 2 O)为微乳液体系,利用滴定法绘制三元相图,研究了温度与促进剂 N,N-二甲基对甲苯胺(DMT)对聚合的影响,利用 MMA(DMT)/HEMA/H 2 O 反向无皂微乳液聚合制备了99 Mo 和125 I 线源,并测定了放射源活度分布均匀性。结果表明,微乳液聚合是一种制备放射源的良好方法。
採用微乳液聚閤方法製備放射源。選擇甲基丙烯痠甲酯(MMA)/甲基丙烯痠羥乙酯(HEMA)/水(H 2 O)為微乳液體繫,利用滴定法繪製三元相圖,研究瞭溫度與促進劑 N,N-二甲基對甲苯胺(DMT)對聚閤的影響,利用 MMA(DMT)/HEMA/H 2 O 反嚮無皂微乳液聚閤製備瞭99 Mo 和125 I 線源,併測定瞭放射源活度分佈均勻性。結果錶明,微乳液聚閤是一種製備放射源的良好方法。
채용미유액취합방법제비방사원。선택갑기병희산갑지(MMA)/갑기병희산간을지(HEMA)/수(H 2 O)위미유액체계,이용적정법회제삼원상도,연구료온도여촉진제 N,N-이갑기대갑분알(DMT)대취합적영향,이용 MMA(DMT)/HEMA/H 2 O 반향무조미유액취합제비료99 Mo 화125 I 선원,병측정료방사원활도분포균균성。결과표명,미유액취합시일충제비방사원적량호방법。
A new method for preparation of radioactive source by polymerization of microemulsions was introduced.Methyl methacrylate (MMA)/hydroxyethyl methylac-rylate (HEMA)/water (H 2 O)was selected as the microemulsions system.The ternary phase diagram was figured out by the conventional titration technique,and the influ-ences of temperature and N,N-dimethyl toluidine (DMT)as the accelerator on the polymerization were investigated.Then,line sources of 9 9 Mo and 1 2 5 I were obtained by polymerization of MMA (DMT)/HEMA/H 2 O soap-free inverse microemulsions,and the radioactivity distribution was measured.The results showed that preparation of radioactive source by polymerization of microemulsions was a good method.
