|Table of Contents|

Synthesis and Properties of Polyglyceryl Surfactants(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年05期
Page:
894-897
Research Field:
Publishing date:

Info

Title:
Synthesis and Properties of Polyglyceryl Surfactants
Author(s):
LIU Xue-min; FENG Yao-ping; Dong Yue-zhen
School of Chemical and Material Engineering，Jiangnan University，Wuxi 214122，Jiangsu，China
Keywords:
Glycerin; 3-Chloro-1; 2-propanediol; Glycidol; Polyglyceryldodecylamine surfactants
PACS:
O623.7
DOI:
10.11861/j.issn.1000-9841.2009.05.0894
Abstract:
3-Chloro-1，2-propanediol was firstly prepared by glycerin，which is the byproduct when producing biodiesel by soybean oil，and HCl under the catalysis of acetic acid.Then glycidol was prepared by 3-Chloro-1，2-propanediol and NaOH in the Dichloromethane phase.Both of the products were analyzed with Gas Chromatogram，the yield of 3-Chloro-1，2-propanediol was 84.6% and glyceriol was 89.6%.The structures of 3-Chloro-1，2-propanediol and glyceriol were characterized by Infrared Spectrum.Polyglyceryl dodecylamine surfactants with different polymeric degrees were synthesized from dodecylamine and glycidol，the yield was no less than 80%.The structures of the final products were characterized by FTIR，ESI-MS.The surface tensions and critical micelle concentrations(cmc) of dilute aqueous solutions of these surfactants were measured at 25℃ by DuNouy ring method in order to investigate the effect of the different polymeric degrees on surface chemical properties.These results indicate that the values of cmc (mmol.L-1) were respectively 0.32，0.055 and 0.20.γcmc(mN.m-1) were respectively 28.46，29.41 and 34.02，which increases as polymerization degree increases.The surfactants also showed excellent properties of emulsification，wetting and foaming.

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Last Update: 2014-09-18