Synthesis and evaluation of dialkyl furan-2,5-dicarboxylates as plasticizers for PVC
โ Scribed by R. D. Sanderson; D. F. Schneider; I. Schreuder
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 628 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
โฆ Synopsis
Di (2-ethylhexyl), di (2-octyl), dihexyl, and dibutyl furan-2,5-dicarboxylate were synthesized from furfural and characterized for their plasticizing abilities toward PVC by dynamic mechanical thermal analysis (DMTA) with di (2-ethylhexy1)phthalate (DOP) as the standard of reference. DMTA gave values for the depression of the glass transition temperature ( T,) per mass fraction of plasticizer, and it also yielded a set of parameters, relative to those for DOP, which describe the compatibility of the furan diesters with PVC. The efficiency in lowering T, as exhibited by di ( 2-ethylhexyl) furan-2,5-dicarboxylate is similar to that of its benzenoid analog, DOP, and was determined at 2.41 and 2.45OC per mass % plasticizer, respectively. All four furan diesters were found to be more compatible toward PVC than toward DOP, with dibutyl furan-2,5-dicarboxylate the most highly compatible.
๐ SIMILAR VOLUMES
## Abstract The Hantzsch condensation of the heteroarylcarboxaldehydes 3aโc with alkyl acetoacetates 4aโc and alkyl 3โaminocrotonates 5aโb afforded the respective dialkyl 1,4โdihydroโ2,6โdimethylโ4โ(heteroaryl)โpyridineโ3,5โdicarboxylates 6aโf possessing a Cโ4 4โquinolinyl, 8โquinolinyl or 1โoxidoโ