Fully biobased multiblock copolymers of furan-aromatic polyester and dimerized fatty acid: Synthesis and characterization

Kwiatkowska, M.; Kowalczyk, Inez; Kwiatkowski, Konrad; Szymczyk, Anna; Rosłaniec, Z.

doi:10.1016/j.polymer.2016.07.060

Cited by 62 publications

(41 citation statements)

References 34 publications

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“…The proceeding of the phase segregation to form crystalline phase is of particular importance when block copolymers are considered. As is well known, an increase in molecular weight and crystallization of constituent blocks favors microphase segregation [33,47,55]. No signs of PLA crystalline behavior has been detected neither at DSC melting curve nor at X-ray diffraction patterns of recorded for copolymers, confirming that rather short aliphatic LA sequences (i.e., L PLA < 1.5) have a minor impact on the molecular arrangement in the crystalline phase and are localized mainly in amorphous lamella.…”

Section: Thermal and Structural Characterizationmentioning

confidence: 55%

“…The tendency to form heterogeneous structure depends on polymer-polymer miscibility and can be predicted according to their solubility parameters. Numerous studies have confirmed the validity of Hoy approach in determining miscibility between two polymers [47][48][49]. A similar comprehensive approach has been proposed by Hoftyzer and Van Krevelen [50].…”

Section: Theoretical Investigation On Miscibility Ofmentioning

confidence: 83%

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Poly(butylene terephthalate)/polylactic acid based copolyesters and blends: miscibility-structure-property relationship

Irska¹,

Paszkiewicz²,

Gorący³

et al. 2020

Express Polym. Lett.

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A series of aliphatic-aromatic copolyesters based on poly(butylene terephthalate) (PBT) and poly(lactic acid) (PLA) have been synthesized by means of a novel reactive blending procedure coupled with polycondensation in melt. The obtained copolymers were further compared with PBT and PLA homopolymers and PBT/PLA non-compatibilized physical blends in order to investigate the effect of transesterification reactions on the structural, morphological, thermal and mechanical performance. Properties of the obtained materials have been found strictly dependent on the preparation process and blend/copolymer composition. The PBT/PLA physical blends appeared as highly crystalline, phase separated systems that exhibit brittle behavior. On the other hand, the applied method of reactive blending enhanced interfacial adhesion and promoted the arrangement of PBT and PLA in blocks of different lengths. Although the PBT-b-PLA copolyesters were found to be miscible in amorphous phase, the phase separation that has arisen from PBT crystalline domains occurs. Along with an increase in PLA weight fraction in copolymers, the length of aromatic sequences decreased which in turn resulted in shifting the values of melting temperatures (T m) toward lower ones and decreased the degree of crystallinity (x c). Moreover, PBT-b-PLA copolymer with 30 wt% of PLA units has been demonstrated as a promising thermoplastic shape memory polymer (SMP) with a switching temperature of 35°C.

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Section: Thermal and Structural Characterizationmentioning

confidence: 55%

Section: Theoretical Investigation On Miscibility Ofmentioning

confidence: 83%

Poly(butylene terephthalate)/polylactic acid based copolyesters and blends: miscibility-structure-property relationship

Irska¹,

Paszkiewicz²,

Gorący³

et al. 2020

Express Polym. Lett.

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show abstract

“…Both amorphous polyesters, i.e. PETG and PEF were synthesised following the same procedure as already published in 29, 30 . For PETG synthesis the following chemicals were used: dimethyl tereftalate (DMT) (Sigma -Aldrich); ethane-1,2-diol (ED) (Sigma -Aldrich), 1,4-cycloheksanedimethanol (CHDM) (Sigma -Aldrich), zinc acetate Zn(CH 3 COO) 2 (ester exchange catalyst) (Sigma -Aldrich); germanium dioxide (GeO 2 ) (polycondensation catalyst) (PPM Pure Metals GmbH); thermal stabilizer Irganox 1010 (Ciba -Geigy, Switzerland).…”

Section: Methodsmentioning

confidence: 99%

Modification of substandard EPDM with amorphous thermoplastic polyesters (PETG and PEF): microstructure and physical properties

Paszkiewicz

Irska

Piesowicz

2018

Polish Journal of Chemical Technology

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The phase morphology, thermal behavior and mechanical properties of two series of polymer blends based on ethylene/propylene/diene rubber (EPDM) and amorphous homologues of poly(ethylene terephthalate), i.e. glycol modifi ed poly(ethylene terephthalate) (PETG) and poly(ethylene furanoate) (PEF), were investigated. The morphology of the blends shows a two phase structure in which the minor phase (amorphous polyester) is dispersed as domains in the major (EPDM) continuous matrix phase. Differential calorimetry studies confi rmed that both systems were immiscible and exhibits two glass transitions. The melting peak area of EPDM in the blends decreased as the amount of the other component increased. The values of stress at strain of 100% were improved upon the increasing content of PETG in EPDM system, while only slight decrease of this value was observed. Moreover, the strong improvement of hardness and thermo-oxidative stability along with an increasing content of amorphous polyester phase was reported.

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“…Poly(trimethylene 2,5-furandicarboxylate-block-dimerized fatty acid) (PTF-b-FADD) copolymers was synthesized fully based on plant-derived reagents. Thermal and mechanical properties of this randomly distributed multi-blocked copolyester were governed by PTF to FADD ratio [18]. Similarly, butylene 2,5-furandicarboxylate units substituted their terephthalate counterparts to serve as a bio-based hard segments for elastomer [19].…”

Section: Introductionmentioning

confidence: 99%

Poly(butylene 2,5-furandicarboxylate-ε-caprolactone): A new bio-based elastomer with high strength and biodegradability

Zheng¹,

Zang²,

Wang³

et al. 2017

Express Polym. Lett.

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Abstract.A new bio-based elastomer, poly(butylene 2,5-furandicarboxylate-ε-caprolactone) (PBFCL), has been synthesized from 2,5-furandicarboxylic acid, 1,4-butanediol, and ε-caprolactone successfully for the first time. The obtained copolyester was characterized in terms of chemical structure, thermal and mechanical properties, and enzymatic degradability. In PBFCL elastomer, butylene-2,5-furandiacrboxylate units (hard segments) crystallize to serve as physical crosslinks while ε-caprolactone polyester diol (soft segments) provide flexibility. PBFCL is a multi-blocked copolyester with randomly distributed rigid and soft segments. It possesses original feature of high strength and biodegradability stemming from the uses of aromatic and aliphatic monomers respectively. An important aspect of this new furanic-aliphatic polyester is its tailor-made properties simply achieved by changing the content of hard or soft segments. Typically, PBFCL-40 of optimal composition has Young's modulus as low as 15.4 MPa, tensile strength as high 24.8 MPa, and elongation as long as 885%.

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Fully biobased multiblock copolymers of furan-aromatic polyester and dimerized fatty acid: Synthesis and characterization

Cited by 62 publications

References 34 publications

Poly(butylene terephthalate)/polylactic acid based copolyesters and blends: miscibility-structure-property relationship

Poly(butylene terephthalate)/polylactic acid based copolyesters and blends: miscibility-structure-property relationship

Modification of substandard EPDM with amorphous thermoplastic polyesters (PETG and PEF): microstructure and physical properties

Poly(butylene 2,5-furandicarboxylate-ε-caprolactone): A new bio-based elastomer with high strength and biodegradability

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