Jump to ContentJump to Main Navigation
Show Summary Details
More options …

e-Polymers

Editor-in-Chief: Agarwal, Seema / Greiner, Andreas

6 Issues per year


IMPACT FACTOR 2017: 1.111

CiteScore 2017: 1.02

SCImago Journal Rank (SJR) 2017: 0.335
Source Normalized Impact per Paper (SNIP) 2017: 0.430

Online
ISSN
1618-7229
See all formats and pricing
More options …
Volume 9, Issue 1

Issues

Volume 13 (2013)

Volume 12 (2012)

Volume 11 (2011)

Volume 10 (2010)

Volume 9 (2009)

Volume 8 (2008)

Volume 7 (2007)

Volume 6 (2006)

Volume 5 (2005)

Volume 4 (2004)

Volume 3 (2003)

Volume 2 (2002)

Volume 1 (2001)

Evaluation of morphological architecture of cellulose chains in grass during conversion from macro to nano dimensions

Jitendra K. Pandey
  • School of Mechanical & Aerospace Engineering & Institute of Advanced Machinery and Design, Building 301,Room 1205, Seoul National University, San 56-1, Shinlim-Dong, Kwanak-Gu, Seoul, 151-742, Korea; tel: +82-2-880-7110, fax: +82-28830178
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Chung-Soo Kim
  • School of Mechanical & Aerospace Engineering & Institute of Advanced Machinery and Design, Building 301,Room 1205, Seoul National University, San 56-1, Shinlim-Dong, Kwanak-Gu, Seoul, 151-742, Korea; tel: +82-2-880-7110, fax: +82-28830178
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Won-Shik Chu
  • School of Mechanical & Aerospace Engineering & Institute of Advanced Machinery and Design, Building 301,Room 1205, Seoul National University, San 56-1, Shinlim-Dong, Kwanak-Gu, Seoul, 151-742, Korea; tel: +82-2-880-7110, fax: +82-28830178
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Caroline S. Lee
  • Division of Materials and Chemical Engineering Hanyang University, Kyunggi-do, 426-791, Korea
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Dong-Young Jang
  • School of Industrial and Information Systems Engineering, Seoul National University of Technology
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Sung-Hoon Ahn
  • Corresponding author
  • School of Mechanical & Aerospace Engineering & Institute of Advanced Machinery and Design, Building 301,Room 1205, Seoul National University, San 56-1, Shinlim- Dong, Kwanak-Gu, Seoul, 151-742, Korea; tel: +82-2-880-7110, fax: +82-28830178
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2013-08-31 | DOI: https://doi.org/10.1515/epoly.2009.9.1.1221

Abstract

The cellulose nanowhiskers (CNW) are of imminent importance in the development of ecofriendly green material for environment. Morphological study of their structure was carried out after extraction from grass. The controlled alkali and acid hydrolysis after soxhlet extraction of bleached fiber in ethanol and water provided a mixture of micro/nano fiber which can be further converted into CNW by mechanical treatment. Width of obtained CNW were found to be ~10-65 nm with length of several nanometers as evidenced by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The changes in dimensions during alkali treatment, bleaching and acid hydrolysis of grass exhibited an interesting architecture and clarify the phenomenon of separation of nano level fibrils from the matrix of hemicellulose and lignin which starts after swelling of fibers and opening from middle followed by splitting from each other. The nanofibers were embedded in the matrix surrounded by amorphous layers. The size of fibers was directly associated with the extent of treatments. The crystalline part of fiber was intact during hydrolysis which must be attributed to easy removal of amorphous region by penetration of hydronum ions from acid. The results of SEM and TEM were correlated with the Scanning Ion Microscopy (SIM) which showed a direct evidence of breaking of thick fiber strands resulting in the formation of sharp edged crystalline entities composed of cellulose crystals.

About the article

Published Online: 2013-08-31

Published in Print: 2009-12-01


Citation Information: e-Polymers, Volume 9, Issue 1, 102, ISSN (Online) 1618-7229, ISSN (Print) 2197-4586, DOI: https://doi.org/10.1515/epoly.2009.9.1.1221.

Export Citation

© 2013 by Walter de Gruyter GmbH & Co..Get Permission

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
You Wei Chen, Hwei Voon Lee, Joon Ching Juan, and Siew-Moi Phang
Carbohydrate Polymers, 2016, Volume 151, Page 1210
[2]
Mehdi Jonoobi, Reza Oladi, Yalda Davoudpour, Kristiina Oksman, Alain Dufresne, Yahya Hamzeh, and Reza Davoodi
Cellulose, 2015, Volume 22, Number 2, Page 935

Comments (0)

Please log in or register to comment.
Log in