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Characterizing polymeric methylene diphenyl diisocyanate reactions with wood. 2, Nano-indentation

In Part 1 of this study, two-dimensional solution-state nuclear magnetic resonance spectroscopy (2D solution NMR) found no covalent bonds between wood polymers and polymeric methylene diphenyl diisocyanate (pMDI) under the experimental conditions used. However, 2D solution NMR could not identify whether or not pMDI had entered the cell wall and if so, whether it...

Author(s):

J.E. Jakes; D.Y. Yelle; J.F. Beecher; C.R. Frihart; D.S. Stone

Year:

2010

Keywords:

Adhesives, testing, glue, adhesion, plant cell walls, loblolly pine, chemical reactions, nanotechnology, mechanical properties, elasticity, modulus of elasticity, hardness, strains, stresses, gluing, wood bonding, bonding, methylene diphenyl diisocyanate, polymers, polymerization, durability, chemical modification of wood, nanoindentation, bondline, swelling, atomic force microscopy, AFM

Source:

Wood Adhesives 2009 [electronic resource]. FPS proceedings no. 7216-09. Madison, WI : Forest Products Society, c2010 [1 CD-ROM]: p. 366-373: ISBN: 9781892529572: 1892529572.

Wood hemicellulose/chitosan-based semi-interpenetrating network hydrogels : mechanical swelling and controlled drug release properties

The cell wall of most plant biomass from forest and agricultural resources consists of three major polymers, cellulose, hemicellulose, and lignin. Of these, hemicelluloses have gained increasing attention as sustainable raw materials. In this study, novel pH-sensitive semi-IPN hydrogels based on hemicelluloses and chitosan were prepared using glutaraldehyde as the...

Author(s):

Ahmet M. Karaaslan; Mandla A. Tshabalala; Gisela Buschle-Diller

Year:

2010

Keywords:

Colloids, hemicellulose, aspen, chitosan, crosslinking, sugars, high performance liquid chromatography, glucose, fourier transform infrared spectroscopy, mechanical properties, vitamin B2, drug delivery systems, crystallization, hydrogels, biorefining, glutaraldehyde, HPLC, xylose, arabinose, swelling

Source:

Bioresources. Vol. 5, no. 2 (2010): p. 1036-1054.

Total Publications in Treesearch: 55,819

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Characterizing polymeric methylene diphenyl diisocyanate reactions with wood. 2, Nano-indentation

Wood hemicellulose/chitosan-based semi-interpenetrating network hydrogels : mechanical swelling and controlled drug release properties

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