欢迎访问《林产化学与工业》,

林产化学与工业 ›› 2018, Vol. 38 ›› Issue (1): 115-120.doi: 10.3969/j.issn.0253-2417.2018.01.017

• 研究报告 • 上一篇    下一篇

两性高分子表面活性剂CHPDMDHA-g-N,O-CMC的合成、表征及性能

李漫1,2, 裴立军1,2, 蔡照胜1, 房桂干2   

  1. 1. 盐城工学院 化学化工学院, 江苏 盐城 224051;
    2. 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
  • 收稿日期:2017-06-07 出版日期:2018-02-25 发布日期:2018-02-28
  • 通讯作者: 蔡照胜,教授,硕士生导师,研究领域为生物质化学改性与利用及化工"三废"资源化利用;E-mail:jsyc_czs@163.com。 E-mail:jsyc_czs@163.com
  • 作者简介:李漫(1992-),女,山东枣庄人,硕士生,主要从事制浆造纸和松脂化学利用研究
  • 基金资助:
    江苏省生物质能源与材料重点实验室开放基金项目资助(JSBEM201607);国家自然科学基金面上项目资助(31170543)

Synthesis,Characterization and Properties of Amphoteric Polymeric Surfactant CHPDMDHA-g-N,O-CMC

LI Man1,2, PEI Lijun1,2, CAI Zhaosheng1, FANG Guigan2   

  1. 1. School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China;
    2. Institute of Chemical Industry of Forestry 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, China
  • Received:2017-06-07 Online:2018-02-25 Published:2018-02-28

摘要: 在25% NaOH溶液催化下,通过3-氯-2-羟丙基二甲基脱氢枞基氯化铵(CHPDMDHA)与N,O-羧甲基壳低聚糖(N,O-CMC)缩合,得到3-氯-2-羟丙基二甲基脱氢枞基氯化铵接枝N,O-羧甲基壳低聚糖(CHPDMDHA-g-N,O-CMC);采用FT-IR和1H NMR表征了产物结构,元素分析法确定了产物接枝度(DQ);根据CHPDMDHA-g-N,O-CMC水溶液表面张力随浓度的变化,确定了其临界胶束浓度(CCMC)及对应的表面张力(γCMC);根据振荡乳化法得到的苯/水体系乳状液稳定时间研究了产物的乳化能力。结果表明:对于接枝度分别为18.7%、21.5%和23.1%的CHPDMDHA-g-N,O-CMC,其CCMC值分别为4.82×10-4、1.33×10-4和7.50×10-5 mol/L,γCMC分别为35.1、33.7和32.7 mN/m;接枝度为23.1%的CHPDMDHA-g-N,O-CMC,其1.0 g/L的水溶液与等体积的苯构成的乳液的稳定时间为195 s,大于同等条件下蔗糖酯和单甘酯为乳化剂时形成的乳液。

关键词: 接枝改性, 表面活性, 乳化性能

Abstract: 3-Chloro-2-hydroxypropyl dimethyl dehydroabietyl ammonium chloride grafted N,O-carboxymethyl chitosan oligosaccharide (CHPDMDHA-g-N,O-CMC) was obtained through the grafting reaction between 3-chloro-2-hydroxypropyl dimethyl dehydroabietyl ammonium chloride (CHPDMDHA) and N,O-carboxymethyl chitosan oligosaccharide (N,O-CMC) with 25% NaOH aqueous solution as catalyst.The structure of CHPDMDHA-g-N,O-CMCs was confirmed by FT-IR and 1H NMR,and the grafting degree (DQ) of CHPDMDHA-g-N,O-CMCs was determined by elemental analysis.The critical micelle concentration (CCMC) and surface tension (γCMC) were determinated according to the variation of the surface tension of CHPDMDHA-g-N,O-CMCs in aqueous solution with the concentration.The emulsifying power of CHPDMDHA-g-N,O-CMCs was investigated according to the stability time of emulsion which was formed by oscillametric method and composed of water and benzene.The experimental results showed when the grafting degrees of CHPDMDHA-g-N,O-CMCs were 18.7%,21.5% and 23.1%,the critical micelle concentrations were 4.82×10-4,1.33×10-4 and 7.50×10-5 mol/L,the surface tensions at cmc ware 35.1,33.7 and 32.7 mN/m,respectively.The stability time of emulsion composed of 1.0 g/L CHPDMDHA-g-N,O-CMC,whose DQ was 23.1%,aqueous solution and benzene at the same volume was up to 195s,which was the longest one among CHPDMDHA-g-N,O-CMC3,sucrose stearate and monoglyceride.

Key words: grafting modification, surface activity, emulsion power

中图分类号: