Blends of cellulose ester/phenolic polymers – chemical and thermal properties of blends with polyvinyl phenol |
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| Authors: | David W. Gaibler Willie E. Rochefort James B. Wilson Stephen S. Kelley |
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| Affiliation: | (1) Department of Chemical Engineering, USA;(2) Department of Wood Science and Engineering, Oregon State University, Corvallis, OR 97330, USA;(3) National Renewable Energy Laboratory, National Bioenergy Center, 1617 Cole Blvd., Golden, CO 80401, USA |
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| Abstract: | A series of miscible cellulose ester/poly (vinyl phenol) (CE/PVP) blends containing a latent formaldehyde source were prepared. Due to the low molecular weight of the PVP, the maximum PVP content ID the films was 50 wt %. The blends were then thermally cross-linked ID an attempt to create semi-interpenetrating polymer networks (semi-IPN). The blends were characterized with differential scanning calorimetry, swelling experiments, pyrolysis molecular beam mass spectrometry (py-MBMS), and Fourier transform infrared (FTIR) spectroscopy. The results from the swelling experiments, py-MBMS and FTIR showed that the PVP component did react with the formation of methylene bridges. Blends that contained 50% PVP and high levels of formaldehyde formed semi-IPN structures. |
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| Keywords: | Blends Cellulose ester FTIR Polyvinyl phenol Pyrolysis mass spectrometry |
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