Abstract
Natural cellulose features the stability in supramolecular structure and the resistance to external stimulus. Molecular approach enables desired intelligence to achieve for the most abundant natural polymer. Ureidopyrimidinone (UPy), a thermally reversible quadruple hydrogen bonding unit, was introduced into natural cellulose as pendent sidegroup via homogeneous cellulose / Lithium chloride (LiCl) / N, N-dimethylacetamide (DMAc) solution. Modified cellulose films with UPy units were prepared by coagulation method. The structure of the modified cellulose was confirmed by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR). The crystallinity was further measured by wide X-ray diffraction (WXRD). Dynamic mechanic analysis (DMA) disclosed that the modified cellulose was mechanically adaptive, exhibiting reversible variation in modulus when triggered by temperature. This finding may be potentially used to develop novel intelligent textiles responsive to thermal stimuli.
| Original language | English |
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| Title of host publication | Fiber Society Spring 2011 Conference |
| Publisher | Hong Kong Polytechnic University |
| Pages | 199 |
| Number of pages | 1 |
| Publication status | Published - 1 Jan 2011 |
| Event | 2011 Spring Conference of the Fiber Society - , Hong Kong Duration: 23 May 2011 → 25 May 2011 |
Conference
| Conference | 2011 Spring Conference of the Fiber Society |
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| Country | Hong Kong |
| Period | 23/05/11 → 25/05/11 |
ASJC Scopus subject areas
- Materials Science(all)