Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (1.4 MB bytes)

Title: Multiphase materials with lignin: 5. Effect of lignin atructure on hydroxypropyl cellulose blend morphology

Author: Rials, Timothy G.; Glasser, Wolfgang G.;

Date: 1990

Source: Polymer 31:1333-1338

Publication Series: Miscellaneous Publication

Description: The incremental elimination of hydroxy functionality in an organosolv lignin by ethylation or acetylation dramatically influenced the state of miscibility and resulting morphology of blends prepared with hydroxypropyl cellulose (HPC). A maximum level of interation between the blend components, as determined from melting point depression, occurred where 23-40% of the hydroxy groups were substituted. Above this level of modification, the interaction parameter decreased reapidly. Complete incompatibility occured at a 90% degree of substitution with acetoxy functionality. Essentially three distinct phase morphologies could be detected in these materials. At the lowest levels of interaction, the morphology resulted from lignin domain formation and hydroxypropyl cellulose liquid crystal mesophase separation.

Keywords: Hydroxypropyl cellulose, lignin, liquid crystals, polymer blends

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Rials, Timothy G.; Glasser, Wolfgang G. 1990. Multiphase materials with lignin: 5. Effect of lignin atructure on hydroxypropyl cellulose blend morphology. Polymer 31:1333-1338

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.