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Conversion of Technical Lignins to Amphiphilic Derivatives with High Surface Activity

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Title: Conversion of Technical Lignins to Amphiphilic Derivatives with High Surface Activity
Authors: Homma, Harumi Browse this author
Kubo, Satoshi Browse this author
Yamada, Tatsuhiko Browse this author
Koda, Keiichi Browse this author →KAKEN DB
Matsushita, Yasuyuki Browse this author
Uraki, Yasumitsu Browse this author →KAKEN DB
Keywords: Dispersion
surface activity
technical lignin
Issue Date: Apr-2010
Publisher: Taylor& Francis
Journal Title: Journal of Wood Chemistry and Technology
Volume: 30
Issue: 2
Start Page: 164
End Page: 174
Publisher DOI: 10.1080/02773810903349713
Abstract: To make use of technical lignins as a nonionic polymeric surfactant, we have already reported the modification of acetic acid lignin (AL) to amphiphilic derivatives by polyoxyethylation using two types of polyethylene glycol (PEG) with diglycidyl (PEGDE) and monoglycidyl (EPEG) groups [1]. Kraft lignin (KL) was converted to amphiphiles in a similar manner. The resultant KL derivatives also indicated high surface activity. Polyethylene glycol with long alkyl chain was introduced to AL, KL, and lignosulfonate (LS) to prepare surfactants of high performance, using dodecyloxy-polyethylene glycol glycidyl ether (DAEO). The resultant DAEO-derivatives showed lower critical micelle concentration by 2-4 orders of magnitude than the corresponding PEGDE- and EPEG-derivatives. The DAEO-derivatives from LS showed better dispersibility for gypsum paste, one of cement components, than LS.
Rights: This is an electronic version of an article published in Journal of Wood Chemistry and Technology, 30(2), April 2010, 164-174. Journal of Wood Chemistry and Technology is available online at:
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 幸田 圭一

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