聚合植物油脂表面活性剂的制备及其结构与性能

doi:10.16085/j.issn.1000-6613.2016.02.037

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

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 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 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/Abstract

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(γ_cmc)、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,γ_cmc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 SnCl₄as 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 (γ_cmc),the Krafft point (KP),the emulsification properties (EP),and the foam proterties (FP) of the K⁺ counterion of HPESO (HPESO-K) were investigated. The M_n of HPESO ranged from 1056g/mol to 1156g/mol and the M_w 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 γ_cmc 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

中图分类号:

TQ423.11

黄旭娟, 刘鹤, 王磊, 商士斌. 聚合植物油脂表面活性剂的制备及其结构与性能[J]. 化工进展, 2016, 35(02): 575-580.

HUANG Xujuan, LIU He, WANG Lei, SHANG Shibin. Synthesis,structure and properties of polymerized vegetable oils-based surfactants[J]. Chemical Industry and Engineering Progree, 2016, 35(02): 575-580.

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聚合植物油脂表面活性剂的制备及其结构与性能

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

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