Synthesis of a novel cationic asphalt emulsifier and its investigation by online FTIR spectrophotometry

Synthesis of a novel cationic asphalt emulsifier and its investigation by online FTIR... A novel cationic asphalt emulsifier N,N-dimethyl-N-(oxiran-2-ylmethyl)octadecan-1-aminium chloride was synthesized by reaction of epichlorohydrin and N,N-dimethyloctadecylamine. The optimum reaction condition was obtained. The yield and epoxy group value reached 98.0 and 41.8 %, respectively, at the optimum conditions: reaction temperature of 50 °C, reaction time of 5 h, and feedstock mole ratio of epichlorohydrin to N,N-dimethyloctadecylamine of 1.2. The chemical structure of the emulsifier was confirmed by Fourier-transform infrared (FTIR), 1H nuclear magnetic resonance (NMR), and elemental analysis. The synthesis process was monitored by the online FTIR technique. The by-product was detected by online FTIR analysis. Based upon the experimental data, a plausible reaction mechanism is proposed for the reaction. The critical micelle concentration (CMC) of the emulsifier has a lower value of 4.35 × 10−4 mol/L. The surface tension at CMC is 28.51 mN/m. The emulsifier exhibits satisfactory emulsification. The prepared bituminous emulsion showed higher storage stability. The emulsifier belongs to the class of medium-set asphalt emulsifiers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis of a novel cationic asphalt emulsifier and its investigation by online FTIR spectrophotometry

Loading next page...
 
/lp/springer_journal/synthesis-of-a-novel-cationic-asphalt-emulsifier-and-its-investigation-YoZ3nmYio2
Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1321-y
Publisher site
See Article on Publisher Site

Abstract

A novel cationic asphalt emulsifier N,N-dimethyl-N-(oxiran-2-ylmethyl)octadecan-1-aminium chloride was synthesized by reaction of epichlorohydrin and N,N-dimethyloctadecylamine. The optimum reaction condition was obtained. The yield and epoxy group value reached 98.0 and 41.8 %, respectively, at the optimum conditions: reaction temperature of 50 °C, reaction time of 5 h, and feedstock mole ratio of epichlorohydrin to N,N-dimethyloctadecylamine of 1.2. The chemical structure of the emulsifier was confirmed by Fourier-transform infrared (FTIR), 1H nuclear magnetic resonance (NMR), and elemental analysis. The synthesis process was monitored by the online FTIR technique. The by-product was detected by online FTIR analysis. Based upon the experimental data, a plausible reaction mechanism is proposed for the reaction. The critical micelle concentration (CMC) of the emulsifier has a lower value of 4.35 × 10−4 mol/L. The surface tension at CMC is 28.51 mN/m. The emulsifier exhibits satisfactory emulsification. The prepared bituminous emulsion showed higher storage stability. The emulsifier belongs to the class of medium-set asphalt emulsifiers.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 29, 2013

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off