Abstract
Chemically modifying after-life PVC may be a useful way of reducing plastic waste. In this work, we modified PVC using a solution of Na2S3 in ethylene glycol, diethylene glycol, and triethylene glycol at temperatures of 150–190 °C. Substitution ratios as high as 89 % were observed, especially at high temperatures. Against our expectations, only monosulfide bridges were present in the modified PVC; polysulfides were absent. This can be explained by the fission of S32− into highly reactive anion radicals. Using a lower-polarity solvent (triethylene glycol) accelerated the dechlorination but also enhanced elimination.
Original language | English |
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Article number | 88 |
Journal | Journal of Polymer Research |
Volume | 22 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2015 May 1 |
Keywords
- Crosslinking
- Elimination
- Solvent polarity
- Substitution
- Sulfur radical anion
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry