Properties of potentially biodegradable copolyesters of (succinic acid-1,4-butanediol)/(dimethyl terephthalate-1,4-butanediol)

Lee, Sung Hyo; Lim, So Young; Lee, Kwang Hee

doi:10.1002/(sici)1097-0126(199909)48:9<861::aid-pi233>3.0.co;2-9

Cited by 59 publications

(24 citation statements)

References 10 publications

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“…In addition, it has been reported that the mechanical properties of PBAT strongly depend on the PBT and PBA fraction contents. Indeed, the elongation at break remarkably increases as the terephthalate aromatic segments decrease [ 39 , 46 ]. As expected, the addition of PBS to PBAT led to blends with increased modulus and decreased elongation at break; that is, blend rigidity increased with PBS content.…”

Section: Resultsmentioning

confidence: 99%

Properties of Biodegradable Films Based on Poly(butylene Succinate) (PBS) and Poly(butylene Adipate-co-Terephthalate) (PBAT) Blends

et al. 2020

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Compression molded biodegradable films based on poly(butylene succinate) (PBS) and poly(butylene adipate-co-terephthalate) (PBAT) at varying weights were prepared, and their relevant properties for packaging applications are here reported. The melt rheology of the blends was first studied, and the binary PBS/PBAT blends exhibited marked shear thinning and complex thermoreological behavior, due to the formation of a co-continuous morphology in the 50 wt% blend. The films were characterized by infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), mechanical tensile tests, scanning electron microscopy (SEM), and oxygen and water vapor permeability. PBS crystallization was inhibited in the blends with higher contents of PBAT, and FTIR and SEM analysis suggested that limited interactions occur between the two polymer phases. The films showed increasing stiffness as the PBS percentage increased; further, a sharp decrease in elongation at break was noticed for the films containing percentages of PBS greater than 25 wt%. Gas permeability decreased with increasing PBS content, indicating that the barrier properties of PBS can be tuned by blending with PBAT. The results obtained point out that the blend containing 25 wt% PBS is a good compromise between elastic modulus (135 MPa) and deformation at break (390%) values. Overall, PBS/PBAT blends represent an alternative for packaging films, as they combine biodegradability, good barrier properties and reasonable mechanical behavior.

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Section: Resultsmentioning

confidence: 99%

Properties of Biodegradable Films Based on Poly(butylene Succinate) (PBS) and Poly(butylene Adipate-co-Terephthalate) (PBAT) Blends

et al. 2020

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“…In general, the PBAT has good flexibility, Young modulus of 52 MPa, tensile strength of 32–36 MPa and high elongation at break (500–800%) . However, the terephthalate content can affect these mechanical properties . PBAT and its nanocomposites are applied in different areas, ranging from biomedical to food packaging .…”

Section: Polymersmentioning

confidence: 99%

Functionalized cellulose nanocrystals as reinforcement in biodegradable polymer nanocomposites

et al. 2017

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This review describes the use of cellulose nanocrystals (CNC) as fillers in biodegradable polymer matrices over the past few years. The preparation and characterization of CNC‐based nanocomposites are highlighted here with a focus on thermophysical and mechanical properties. The characterization and isolation of nanocellulose from different raw material sources are discussed in detail, as well as different surface modifications. The addition of CNC in biodegradable polymer, combined with nanocellulose surface engineering and driven by sustainability trends, has the potential to impact various industrial sectors. POLYM. COMPOS., 39:E9–E29, 2018. © 2017 Society of Plastics Engineers

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“…Two variants of the method were used. In method A, as described previously by Lee et al for succinate‐terephthalate copolyesters,30 the first step was carried out separately with DMT and DEF in order to obtain the corresponding bishydroxyethyl‐terminated oligoesters BHET and BHEF (mainly trimers, n = 1; Scheme ). Each reaction was considered to be complete when the theoretical amount of methanol or ethanol was collected.…”

Section: Resultsmentioning

confidence: 99%

Copolyesters Containing Terephthalic and Bio‐Based Furanic Units by Melt‐Polycondensation

Abid

Kamoun

Gharbi

et al. 2008

Macro Materials & Eng

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5,5′‐Isopropylidene‐bis(ethyl 2‐furoate), a monomer prepared from bio‐based ethyl 2‐furoate, was reacted with dimethyl terephthalate and ethan‐1,2‐diol (ED) by melt polycondensation in order to obtain copolyesters containing both terephthalate and furoate units. The conventional two‐step method involving (i) the formation of a hydroxyethyl‐terminated oligomer by reaction of starting diester mixture with excess ED and (ii) a polycondensation step with elimination of ED was used to obtain high molar mass copolyesters. Copolymers of various compositions were synthesized and characterized by 1H NMR, DSC, and TGA. For all compositions, the degree of randomness, determined by 1H NMR, was close to 1, reflecting a random distribution of terephthalic and furanic ester units in polymer chains. The resulting materials are amorphous polymers (Tg = 70–80 °C) with good thermal stability.

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Properties of potentially biodegradable copolyesters of (succinic acid-1,4-butanediol)/(dimethyl terephthalate-1,4-butanediol)

Cited by 59 publications

References 10 publications

Properties of Biodegradable Films Based on Poly(butylene Succinate) (PBS) and Poly(butylene Adipate-co-Terephthalate) (PBAT) Blends

Properties of Biodegradable Films Based on Poly(butylene Succinate) (PBS) and Poly(butylene Adipate-co-Terephthalate) (PBAT) Blends

Functionalized cellulose nanocrystals as reinforcement in biodegradable polymer nanocomposites

Copolyesters Containing Terephthalic and Bio‐Based Furanic Units by Melt‐Polycondensation

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