High molecular weight poly(butylene succinate-co-butylene furandicarboxylate) copolyesters: from catalyzed polycondensation reaction to thermomechanical properties

Novel potentially biobased aliphatic-aromatic copolyesters poly(butylene succinate-co-butylene furandicarboxylate) (PBSFs) in full composition range were successfully synthesized from 2,5-furandicarboxylic acid (FA), succinic acid (SA), and 1,4-butanediol (BDO) via an esterification and polycondensa...

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Vydané v:Biomacromolecules Ročník 13; číslo 9; s. 2973
Hlavní autori: Wu, Linbo, Mincheva, Rosica, Xu, Yutao, Raquez, Jean-Marie, Dubois, Philippe
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States 10.09.2012
Predmet:
Biocompatible Materials - chemical synthesis
Butylene Glycols - chemistry
Calorimetry, Differential Scanning
Chromatography, Gel
Crystallization
Dicarboxylic Acids - chemistry
Furans - chemistry
Hot Temperature
Magnetic Resonance Spectroscopy
Molecular Weight
Polyesters - chemical synthesis
Spectroscopy, Fourier Transform Infrared
Succinic Acid - chemistry
Tensile Strength
Thermogravimetry
Titanium - chemistry
ISSN:1526-4602, 1526-4602
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Shrnutí:Novel potentially biobased aliphatic-aromatic copolyesters poly(butylene succinate-co-butylene furandicarboxylate) (PBSFs) in full composition range were successfully synthesized from 2,5-furandicarboxylic acid (FA), succinic acid (SA), and 1,4-butanediol (BDO) via an esterification and polycondensation process using tetrabutyl titanate (TBT) or TBT/La(acac)(3) as catalyst. The copolyesters were characterized by size exclusion chromatography (SEC), Fourier transform infrared (FTIR), (1)H NMR, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), and their tensile properties were also evaluated. The weight average molecular weight (M(w)) ranges from 39,000 to 89,000 g/mol. The copolyesters are random copolymers whose composition is well controlled by the feed ratio of the diacid monomers. PBSFs have excellent thermal stability. The glass transition temperature (T(g)) increases continuously with φ(BF) and agrees well with the Fox equation. The crystallizability and T(m) decrease with increasing butylene furandicarboxylate (BF) unit content (φ(BF)) from 0 to 40 mol %, but rise again at φ(BF) of 50-100 mol %. Consequently, the tensile modulus and strength decrease, and the elongation at break increases with φ(BF) in the range of 0-40 mol %. At higher φ(BF), the modulus and strength increase and the ultimate elongation decreases. Thus, depending on φ(BF), the structure and properties of PBSFs can be tuned ranging from crystalline polymers possessing good tensile modulus (360-1800 MPa) and strength (20-35 MPa) to nearly amorphous polymer of low T(g) and high elongation (~600%), and therefore they may find applications in thermoplastics as well as elastomers or impact modifiers.
Bibliografia:ObjectType-Article-1
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ISSN:1526-4602
1526-4602
DOI:10.1021/bm301044f