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Synthesis of a bio-based plasticizer from vanillic acid and its effects on poly(vinyl chloride) |
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| Authors: | Huichao Zhu Jianjun Yang Mingyuan Wu Qingyun Wu Jiuyi Liu Jianan Zhang |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Anhui University, Hefei, China Contribution: Investigation (equal), Writing - original draft (lead);2. School of Chemistry and Chemical Engineering, Anhui University, Hefei, China;3. School of Chemistry and Chemical Engineering, Anhui University, Hefei, China Engineering Laboratory of High Performance Waterborne Polymer Materials of Anhui Province, Anhui University, Hefei, China Contribution: Writing - review & editing (equal) |
| Abstract: | A new bio-based plasticizer, VA8-8, was prepared derived from vanillic acid, and its structure was verified by nuclear magnetic resonance. It was incorporated into poly(vinyl chloride) (PVC) to replace dioctyl phthalate (DOP), and its plasticizing performance was evaluated. The results indicated that VA8-8 shows good compatible with PVC resin, and has a excellent plasticizing effect for PVC. When DOP was partially or completely substituted with VA8-8, the Tg value PVC blends dropped from 34.6 to 24.3°C and the elongation at break increased from 196.4% to 301.9%, suggesting the enhanced plasticizing efficiency of plasticizer. The plasticizing mechanism was also simulated, and the interactions between VA8-8 and PVC molecules were discussed. The thermogravimetric analysis showed VA8-8 can more effectively improve the thermal stability of PVC than DOP. In addition, the migration resistance of VA8-8 was generally superior to that of DOP. Therefore, VA8-8 is a comparable to or better plasticizer than DOP, and it is a promising alternative plasticizer for PVC. |
| Keywords: | applications biodegradable blends synthesis and processing techniques thermoplastics |