应用化学 ›› 1990, Vol. 0 ›› Issue (1): 94-97.

• 研究简报 • 上一篇    下一篇

乙烯类单体自由基聚合的阻聚效应——Ⅻ.酰氨基硫脲及某些杂环衍生物对醋酸乙烯酯聚合的影响

张自义, 魏秀英, 杨嵘, 葛士珍   

  1. 兰州大学化学系 兰州 730000
  • 收稿日期:1989-03-06 修回日期:1989-06-14 出版日期:1990-02-10 发布日期:1990-02-10
  • 基金资助:
    国家科学基金

INHIBITING EFFECTS ON THE RADICAL POLYMERIZATION OF VINYL MONOMERS Ⅻ.THE INHIBITING EFFECT OF ACYL THIOSEMICARBAZIDES AND SOME HETEROCYCLES ON POLYMERIZATION OF VAc

Zhang Ziyi, Wei Xiuying, Yang Rong, Ge Shizhen   

  1. Department of Chemistry, Lanzhou University, Lanzhou 30000
  • Received:1989-03-06 Revised:1989-06-14 Published:1990-02-10 Online:1990-02-10

摘要: 众所周知,酚类、胺类、醌类、硝基以及亚硝基化合物对烯类单体的自由基聚合有阻聚作用。一些杂原子化合物如RNHNHR′,RSR(RNHCSS)2M等对烯类单体的自由基聚合也能产生阻聚[1-5]

关键词: 阻聚剂, 自由基聚合反应, 酰氨基硫脲, 三氮唑, 乙酸乙烯酯

Abstract: The inhibition effects of five 1-isonicotinoyl-4-arylthiosemicarbazides and some 1,2,4-triazoline-5-thione derivatives on the polymerization of VAc, initiated by AIBN, have beeninvestigated by dilatometric method. The results showed that being added in the amountof 1000-3000ppm, the thiosemicarbazides have a more prominent inhibiting effect thantrizoline-5-thiones. When the compounds studied were incorporated with 1,4-benzoquinoneor hydroquinone the inhibiting effect increased strikingly.

Key words: inhibitor, radical polymerization, acylthiosemicarbazide, triazole, vinyl acetate