Synthesis of Lignin Amine Asphalt Emulsifier and its Investigation by Online FTIR Spectrophotometry

Autor:	Xiang Tao, Mei Jie Sun, Na Li, Lai Shun Shi
Rok vydání:	2014
Předmět:	Reaction mechanism Materials science medicine.diagnostic_test General Engineering Cationic polymerization Formaldehyde chemistry.chemical_compound chemistry Chemical engineering Spectrophotometry Emulsion medicine Lignin Organic chemistry Amine gas treating Fourier transform infrared spectroscopy
Zdroj:	Advanced Materials Research. 909:72-76
ISSN:	1662-8985
DOI:	10.4028/www.scientific.net/amr.909.72
Popis:	A novel cationic asphalt emulsifier of tetraethylenepentamine/formaldehyde modified lignin amine was synthesized by alkali lignin, tetraethylenepentamine and formaldehyde. The optimum reaction condition was obtained. The structure of the emulsifier was identified by FTIR. The synthesis process was monitored by online FTIR technique. Based upon the experimental data, a plausible reaction mechanism was proposed for the reaction. The target product has good surface activity and satisfactory emulsification effect. The prepared bituminous emulsion showed higher storage stability. The emulsifier belongs to slow-set asphalt emulsifier.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7f92a58838fb4748306807dfe2d2e4a https://doi.org/10.4028/www.scientific.net/amr.909.72 Zobrazit plný text záznamu