Journal
POLYMERS
Volume 9, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/polym9110621
Keywords
cardanol; plasticizer; poly(vinyl chloride); migration; plasticization mechanism
Categories
Funding
- National Natural Science Foundation of China [31670578, 31670577, 31700499]
- National Key Research and Development Program of China [2017YFD0601000]
- Fundamental Research Funds from Jiangsu Province Biomass and Materials Laboratory [JSBEM-S-2017010]
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Internally plasticized poly(vinyl chloride) (PVC) materials are investigated via grafting of propargyl ether cardanol (PEC). The chemical structure of the materials was studied by FT-IR and H-1 NMR. The performace of the obtained internally plasticized PVC materials was also investigated with TGA, DSC and leaching tests. The results showed that grafting of propargyl ether cardanol (PEC) on PVC increased the free volume and distance of PVC chains, which efficiently decreased the glass transition temperature (T-g). No migration was found in the leaching tests for internally plasticized PVC films compared with plasticized PVC materials with commercial plasticizer dioctyl phthalate (DOP). The internal plasticization mechanism was also disscussed according to lubrication theory and free volume theory. This work provides a meaningful strategy for designing no-migration PVC materials by introducing cardanol groups as branched chains.
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