Abstract
In this paper we present our surface chemistry studies of enzymatically polymerized, poly-coniferyl alcohol lignin model compound (dehydrogenate polymer a.k.a. ZL-DHP) at the air-water interface. Using the CHCl3/MeOH (5:1 v/v) spreading solvent, we found an average molecular area of ZL-DHP of approximately 1200 Å2. The monolayer expresses a high compressibility with a collapsed area of 500 Å2 and collapsed surface pressure of 28 mN m-1. In the range of applied surface pressures, ZL-DHP polymer have no phase changes, as shown by the very high linearity (R=0.994) of absorbance vs. surface pressure cure. There was no symmetry transitions observed as shown by absence of shifts of absorption peak maximums.
Original language | English (US) |
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Article number | 3018 |
Pages (from-to) | 55-62 |
Number of pages | 8 |
Journal | Biophysical Chemistry |
Volume | 99 |
Issue number | 1 |
DOIs | |
State | Published - 2002 |
Keywords
- Air-water interface
- Cell wall
- DHP
- Langmuir film
- Lignin model compound
- Plant physiology
- Polymer
ASJC Scopus subject areas
- Biochemistry
- Physical and Theoretical Chemistry
- Biophysics