Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
Email

 

You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Formation of Irreversible H-bonds in Cellulose Materials

Source: Proceedings of the 18th ISWFPC (International Symposium on Wood, Fiber, and Pulping Chemistry) held in Vienna (Sept 9 -11, 2015). 2015; pp. 18-21.

Author(s)Agarwal, Umesh P.; Ralph, Sally A.; Reiner, Rick S.; Stark, Nicole M.

Publication Year: 2015  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4706-1B  FPL-4709-2B

Abstract: Understanding of formation of irreversible Hbonds in cellulose is important in a number of fields. For example, fields as diverse as pulp and paper and enzymatic saccharification of cellulose are affected. In the present investigation, the phenomenon of formation of irreversible H-bonds is studied in a variety of celluloses and under two different drying conditions. Avicel and amorphous celluloses along with those from wood and tunicate were investigated. Sample deuteration was used to form deuterated Hbonds which provided valuable information. Samples of the deuterated and non-deuterated materials were evaluated in dried state by means of ATR IR and 1064 nm FT-Raman spectroscopies. Additionally, quantitative information on cellulose accessibility at the molecular level was obtained using a newly developed Raman method that required sampling under D2O. Further, to investigate irreversible nature of the H-bonds, the deuterated materials were treated with water. Irreversible H-bonds or irreversible deuterations were characterized by measurement of the residual intensity in the OD stretch region of the H2O-exchanged samples. Moreover, the formation of irreversible H-bonds resulted in reduced accessibility to water, as measured by the before-and after-drying measurements of the increase of band intensity at 1380 cm-1.

Keywords: cellulose, hornification, infrared spectroscopy, irreversible H-bond, Raman spectroscopy

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 208 kb(s)

Date posted: 09/25/2015

This publication is also viewable on Treesearch:  view
RITS Product ID: 75505
Current FPL Scientists associated with this product (listed alphabetically)
Agarwal, Umesh P.
Research Chemist
Stark, Nicole M.
Research Chemical Engineer
 

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »


Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »


Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


Nanotechnology

A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »


Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »