[1]戴润英,游胜勇,王文敏,等.有机硅羧酸钠表面活性剂的合成及其应用研究[J].江西师范大学学报(自然科学版),2015,(06):561-565.
 DAI Runying,YOU Shengyong,WANG Wenmin,et al.The Synthesis and Application of Sodium Silicone Carboxylate[J].,2015,(06):561-565.
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有机硅羧酸钠表面活性剂的合成及其应用研究()
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《江西师范大学学报》(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年06期
页码:
561-565
栏目:
出版日期:
2015-12-31

文章信息/Info

Title:
The Synthesis and Application of Sodium Silicone Carboxylate
作者:
戴润英;游胜勇;王文敏;蔡雪萍;陈琼遥
1.江西农业大学理学院,江西 南昌 330045; 2.江西省科学院应用化学研究所,江西 南昌 330096
Author(s):
DAI RunyingYOU ShengyongWANG WenminCAI XuepingCHEN Qiongyao
1.Department of Chemistry,Jiangxi Agricultural University,Nanchang Jiangxi 330045,China; 2.Institut of Applied Chemistry,Jiangxi Academy of Sciences,Nanchang Jiangxi 330096,China
关键词:
硅氢加成 双疏水链 有机硅表面活性剂 辛硫磷 铺展性
Keywords:
hydrosilylation double hydrophobic chain organosilicone surfactant phoxim pesticide spreadability
分类号:
TQ 423
文献标志码:
A
摘要:
为提高农药的叶面展性和靶标生物作用率,设计合成双疏水链的有机硅羧酸钠表面活性剂.采用FT-IR光谱表征产物结构,用拉环法测定其表面活性.利用正交试验法优化硅氢加成反应条件,并将Si-H转化率最高的有机硅羧酸钠用作辛硫磷助剂.结果表明:低含氢硅油和丙烯酸单体投料摩尔比为1.00:1.02,氯铂酸催化剂加入量(以Pt计)为单体质量的0.03%,110 ℃下反应6 h制得的有机硅羧酸钠,Si-H转化率达87.8%.有机硅羧酸钠表面活性剂水溶液在298 K时的临界胶束浓度(cmc)为4×10mol·L,最低表面张力(γ)为17.87 mN·m.1%质量浓度的辛硫磷溶液在树叶表面能完全铺展,主要是由于双疏水链的有机硅羧酸钠表面活性剂分子的加入.
Abstract:
A series of sodium silicone carboxylate surfactants with double hydrophobic chain have been designed and synthesized to improve the spreadability of pesticide on the leaves and the utilization of the target organism.The structure of products have been characterized by FT-IR.The surfactivity of the sodium silicone carboxylate surfactants have been tested by pulling ring method.The best condition of hydrosilylation was optimized by orthogonal method and the silicone carboxylate surfactants with highest Si-H conversion rate are applied in phoxim solution.The results show that the sodium silicone carboxylate was obtained by the low hydrogen silicone oil and acrylic acid with the molar ratio of 1.00 to 1.02,with the catalyst(Pt dollars)of 0.03% in the mass of monomer with the temperature of 110 ℃ for 6 h as well as the conversion rate of Si-H is 87.8%.The critical micelle concentration(cmc)and the surface tension of sodium silicone carboxylate surfactant is 4×10mol·L and 17.87 mN·m respectively.The 1% phoxim pesticide emulsion spread completely on the leaves which due to sodium silicone carboxylate surfactant with double hydrophobic chain be added.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目:江西省自然科学基金(20132BAB213014)和江西省科技支撑计划(20121BBG70060)资助项目.
更新日期/Last Update: 1900-01-01