Abstract
The homogeneous grafting of methyl acrylate onto cellulose was carried out in a dimethyl sulfoxide/paraformaldehyde solvent system. The grafted products were added to cellulose/poly(methyl acrylate) (PMA) blends as compatibilizers. The thermal decomposition behavior of the blends was investigated by thermogravimetry. The thermal stability of the blends decreased with an increase in grafted product content. Accessibility determined by a deuteration method increased with grafted product content and peak intensity of wide-angle X-ray diffraction patterns decreased. The microphase-separated structures of the blends with higher grafted product content were finer than those of the blends without grafted products. Dynamic mechanical measurements and differential scanning calorimetry were carried out to determine the glass transition temperatures, Tg, of the blends. Tg for cellulose decreased with an increase in grafted product content but that for PMA hardly varied. The difference in thermal decomposition behavior of the blends was correlated to that in compatibility. Thermogravimetry was effective for compatibility estimation in cellulose/PMA blends containing grafted products.
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Nishioka, N., Tabata, M., Saito, M. et al. Thermal Decomposition of Cellulose/Synthetic Polymer Blends Containing Grafted Products III. Cellulose/Poly(methyl acrylate) Blends. Polym J 29, 508–513 (1997). https://doi.org/10.1295/polymj.29.508
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DOI: https://doi.org/10.1295/polymj.29.508