化工进展 ›› 2016, Vol. 35 ›› Issue (02): 575-580.DOI: 10.16085/j.issn.1000-6613.2016.02.037

• 精细化工 • 上一篇    下一篇

聚合植物油脂表面活性剂的制备及其结构与性能

黄旭娟1, 刘鹤1, 王磊2, 商士斌1   

  1. 1 中国林业科学研究院林产化学工业研究所, 生物质化学利用国家工程实验室, 国家林业局林产化学工程重点开放性实验室, 江苏省生物质能源与材料重点实验室, 江苏 南京 210042;
    2 南京林业大学化学工程学院, 江苏 南京 210042
  • 收稿日期:2015-05-21 修回日期:2015-08-17 出版日期:2016-02-05 发布日期:2016-02-05
  • 通讯作者: 刘鹤,副研究员,研究领域为纤维素资源利用。E-mail:liuheicifp@hotmail.com;商士斌,研究员,博士生导师,研究领域为生物质资源的化学研究与利用。E-mail:shangsb@hotmail.com。
  • 作者简介:黄旭娟(1991-),女,硕士研究生。
  • 基金资助:
    江苏省自然科学基金青年基金(BK2012063)、中央级公益性科研院所基本科研业务费专项资金(CAFINT2012C05)及国家自然科学基金青年基金(31200446)项目。

Synthesis,structure and properties of polymerized vegetable oils-based surfactants

HUANG Xujuan1, LIU He1, WANG Lei2, SHANG Shibin1   

  1. 1 Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab for Biomass Chemical Utilization;Key and Open Lab of Forest Chemical Engineering, SFA;Key Lab of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, Jiangsu, China;
    2 Chemical Engineering College, Nanjing Forestry University, Jiangsu Province, Nanjing 210042, Jiangsu, China
  • Received:2015-05-21 Revised:2015-08-17 Online:2016-02-05 Published:2016-02-05

摘要: 采用环氧大豆油(ESO)为原料,乙酸乙酯为溶剂,四氯化锡为催化剂,通过环氧大豆油的开环自聚,制备聚合环氧大豆油(PESO);再将PESO在碱性条件下水解,洗涤纯化后得到水解聚合环氧大豆油(HPESO)。通过傅里叶红外光谱(FTIR)、核磁共振氢谱(1H NMR)和凝胶渗透色谱(GPC)对HPESO的结构及分子量分布进行了表征,并对得到的水解聚合环氧大豆油脂肪酸钾盐表面活性剂(HPESO-K)的临界胶束浓度cmc及其表面张力(γcmc)、Krafft点(KP)、液体石蜡/水体系的乳化能力(EP)与抑泡及消泡能力(FP)进行了研究。结果表明:HPESO的数均分子量范围为1056~1156g/mol,重均分子量范围为1255~1374g/mol。在水溶液pH值为9~12条件下,HPESO-K的cmc值为0.13~0.41g/L,γcmc值为25.6~31.2mN/m。在水溶液pH=9条件下测得HPESO-K的Krafft点为37℃,液体石蜡/水体系中分出10mL水的时间为130s,亲水亲油平衡(HLB)值范围为10~11。

关键词: 环氧大豆油, 聚合, 水解, 分子量分布, 表面活性剂

Abstract: Polymerized epoxidized soybean oil (PESO) was firstly prepared through the ring-opening polymerization of epoxidized soybean oil in ethyl acetate using SnCl4 as catalyst. The hydrolyzed PESO (HPESO) was obtained via the hydrolyzation of PESO under alkaline condition after purification. The structure of HPESO was characterized by FTIR and 1H NMR. The molecular weight of HPESO was obtained by GPC. The critical micelle concentrations (cmc),the surface tensions corresponding to cmc (γcmc),the Krafft point (KP),the emulsification properties (EP),and the foam proterties (FP) of the K+ counterion of HPESO (HPESO-K) were investigated. The Mn of HPESO ranged from 1056g/mol to 1156g/mol and the Mw of HPESO ranged from 1255g/mol to 1374g/mol. Through varying the pH of HPECO-K aqueous solution from 9 to 11,the cmc of HPESO-K surfactant ranged from 0.13g/L to 0.41g/L and the γcmc of HPECO-K ranged from 25.6mN/m to 31.2mN/m,respectively. The KP of HPECO-K was 37℃ when the pH of HPECO-K solution was 9. When the surfactant was used as emulsifier,the time for 10mL water separated from the turpentine/water emulsion was 130s. The hydrophile lipophile balance (HLB) of HPECO-K was in the range of 10—11.

Key words: epoxidized soybean oil, polymerization, hydrolysis, molecular weight distribution, surfactants

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