In Situ Synthesis, Crystallization Behavior, and Mechanical Property of Biobased Poly(hexamethylene 2,5-furandicarboxylate)/Multiwalled Carbon Nanotube Nanocomposites

Chen, Ming-Kun; Jiang, Zhiguo; Qiu, Zhaobin

doi:10.1021/acs.iecr.2c01449

Cited by 6 publications

(1 citation statement)

References 40 publications

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“…Ⅱ and III are mainly related to the melting behavior of β -crystals, where Ⅱ increases with increasing T c and Ⅲ barely shifts with increasing T c . This can be explained by the melting–recrystallization –remelting theory because imperfect β -crystals formed at higher T c are more stable and have a shift in melting point towards higher temperatures, whereas, for the melting peak, Ⅲ of the perfect β -crystals formed by recrystallization does not change with increasing T c , a phenomenon similar to that reported by Chen [ 22 ]. Due to the restricted interval of melt recrystallization of PPF and PPFEG copolymer cool due to increasing T c , the intensity of all polyester Ⅲ decreases continuously and eventually overlaps with the progressively higher temperature shifted Ⅱ or higher temperature Ⅳ figure and disappears.…”

Section: Resultssupporting

confidence: 73%

Melting Behaviors of Bio-Based Poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) Co Polymers Related to Their Crystal Morphology

Shi,

Li,

Yang

et al. 2023

Polymers

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In this experiment, a series of poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) (PPFEG) copolymers with different ratios were synthesized using melt polycondensation of dimethylfuran-2,5-dicarboxylate (DMFD), 1,3-propanediol (PDO) and poly(ethylene glycol) (PEG). The effect of PEG content on the crystallization behavior of the poly(propylene 2,5-furan dicarboxylate) (PPF) copolymers was investigated. For PPF, the nucleation density of the β-crystals was higher than that of α-crystals. As Tc increases, the β crystals are suppressed more, but at Tc = 140 °C, the bulk of PPF has already been converted to α crystals, which crystallize faster at higher nucleation densities, resulting in a difference in polymer properties. For this case, we chose to add a soft segment material, PEG, which led to an early multi–melt crystallization behavior of the PPF. The addition of PEG led to a decrease in the crystallization temperature of PPF, as well as a decrease in the cold crystallization peak of PPF. From the crystalline morphology, it can be seen that the addition of PEG caused the transformation of the PPF crystalline form to occur earlier. From the crystalline morphology of PPF at 155 °C, it can be observed that the ring-banded spherical crystals of the PPF appear slowly with increasing time. With the addition of PEG, spherical crystals of the ring band appeared earlier, and even appeared first, and then disappeared slowly.

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Section: Resultssupporting

confidence: 73%

Melting Behaviors of Bio-Based Poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) Co Polymers Related to Their Crystal Morphology

Shi,

Li,

Yang

et al. 2023

Polymers

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Flexible and Recyclable Bio‐Based Polyester Composite Films with Outstanding Mechanical and Gas Barrier Properties Using Leaf‐Shaped CNT@BNNS Covalent Heterojunction

Ding,

Zhao,

Wang

et al. 2024

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With the depletion of petroleum resources, the development of sustainable alternatives for plastic substitutes has grown in importance. It is urgently desirable yet challenging to design high‐performance polyesters with extensive mechanical and prominent gas barrier properties. This work uses bio‐based PBF polyester as a matrix, “leaf‐shaped” carbon nanotube@boron nitride nano‐sheet (CNT@BNNS) covalent hetero‐junctions as functional fillers, to fabricate CNT@BNNS/PBF (denoted as CBNP) composite films through an “in‐situ polymerizing and hot‐pressing” strategy. The covalent CNT “stem” suppresses the re‐stacking of BNNS “leaf”, endowing hetero‐structured CNT@BNNS illustrates superior stress transfer and physical barrier effect. The covalently hetero structure and high orientation degree of CNT@BNNS greatly improve the comprehensive performance of the CBNP composites, including excellent mechanical (strength of 76 MPa, modulus of 2.3 GPa, toughness of 85 MJ m−3, elongation at break of 193%) and gas barrier (O2 of 0.015 barrer, and H2O of 1.1 × 10−14 g cm cm−2 s−1 Pa−1) properties that are much higher than for pure PBF or other‐type polyesters, and most engineering plastics. Moreover, the CBNP composites also boast easy recyclability, overcoming the tradeoff between high performance and easy recycling of traditional plastics, which makes the polyester composite competitive as a plastic substitute.

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Crystallization and mechanical property of fully biobased poly(hexamethylene 2,5-furandicarboxylate)/cellulose nanocrystals composites

Pan

Jiang

Qiu

2023

Polymer

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In Situ Synthesis, Crystallization Behavior, and Mechanical Property of Biobased Poly(hexamethylene 2,5-furandicarboxylate)/Multiwalled Carbon Nanotube Nanocomposites

Cited by 6 publications

References 40 publications

Melting Behaviors of Bio-Based Poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) Co Polymers Related to Their Crystal Morphology

Melting Behaviors of Bio-Based Poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) Co Polymers Related to Their Crystal Morphology

Flexible and Recyclable Bio‐Based Polyester Composite Films with Outstanding Mechanical and Gas Barrier Properties Using Leaf‐Shaped CNT@BNNS Covalent Heterojunction

Crystallization and mechanical property of fully biobased poly(hexamethylene 2,5-furandicarboxylate)/cellulose nanocrystals composites

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