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日用化学工业 ›› 2014, Vol. 44 ›› Issue (2): 75-78.doi: 10.13218/j.cnki.csdc.2014.02.017

• 开发与应用 • 上一篇    下一篇

端氨丙基聚二甲基硅氧烷的合成研究

罗啸秋, 张利萍, 吴海龙, 雷秋芬   

  1. 广州天赐高新材料股份有限公司,广东 广州 510760
  • 收稿日期:2013-08-16 发布日期:2019-04-09
  • 作者简介:罗啸秋(1987-),男,湖北人,学士,电话:(020)82251159,E-mail:luoxiaoqiu@tinci.com。

Synthesis of aminopropyl end capped polydimethylsiloxane

LUO Xiao-qiu, ZHANG Li-ping, WU Hai-long, LEI Qiu-fen   

  1. Guangzhou Tinci Materials Technology Co.Ltd.,Guangzhou,Guangdong 510760,China
  • Received:2013-08-16 Published:2019-04-09

摘要: 以1,3-双(3-氨基丙基)-1,1,3,3-四甲基二硅氧烷(氨丙基封端剂)和八甲基环四硅氧烷(D4)为原料,在四甲基氢氧化铵((CH3)4NOH)硅醇盐的催化下合成端氨丙基聚二甲基硅氧烷。较佳的反应条件为:反应温度80~90 ℃,反应时间5 h,催化剂硅醇盐用量(相对于D4的质量)0.75%。同时对封端剂的用量(Wf)与产物黏度(η25)、产物实际氨值(W′NH)的对应关系以及产物重均相对分子质量(Mw)与黏度的关系进行研究。通过红外光谱对产物结构进行分析,结果表明氨丙基封端剂成功参与反应。

关键词: 端氨丙基聚二甲基硅氧烷, 封端剂, 合成, 表征

Abstract: With 1,3-Bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane (aminopropyl end capping agent) and octamethylcyclotetrasiloxane (D4) as starting materials,aminopropyl end capped polydimethylsiloxane was synthesized under the catalysis of tetramethylammonium hydroxide ((CH3)4NOH) silanolate.The optimum conditions were obtained as follows:reaction temperature 80-90 ℃;reaction time 5 h;dosage of silanolate catalyst 0.75% (based on total mass of D4).The relationship between the dosage of capping agent (Wf) and product viscosity (η25) as well as actual amine equivalence of the product (W′NH),and the relationship between the average molecular weight (Mw) and product viscosity were studied.Structure of the product was characterized by IR spectrum,and the result showed that the end capping agent reacted with D4 successfully.

Key words: aminopropyl end capped polydimethylsiloxane, capping agent, synthesis, characterization

中图分类号: 

  • TQ423.4