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Biodegradable polymers based on renewable resources. II. Synthesis and biodegradability of polyesters containing furan rings

✍ Scribed by Masahiko Okada; Kouji Tachikawa; Keigo Aoi

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 232 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19970930)35:13<2729::aid-pola18>3.0.co;2-d

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✦ Synopsis

A series of polyesters were synthesized by the bulk polycondensations of the respective combinations of two difuranic diesters, i.e., bis(5-(methoxycarbonyl)-2furyl)methane ( 4a) and 1,1-bis(5-(methoxycarbonyl)-2-furyl)ethane ( 4b), with two 1,4 : 3,6-dianhydrohexitols [1,4 : 3,6-dianhydro-D-glucitol ( 1) and 1,4 : 3,6-dianhydro-D-mannitol (2)], four aliphatic diols, and three oligo(ethylene glycol)s. The polycondensations were carried out at 220-230ЊC in the presence of titanium isopropoxide as a catalyst, giving polyesters having number average molecular weight up to 2.4 1 10 4 . These polyesters are soluble in a variety of solvents including chlorinated hydrocarbons, 1,4-dioxane, dimethyl sulfoxide, dimethylformamide, and sulfolane. Soil-burial tests along with enzymatic degradation experiments showed that these polyesters are potentially biodegradable.

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