Isothermal Crystallization Kinetics and Crystalline Morphologies of Poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) Copolymers

Liu, Fei; Chi, Dequan; Na, Hai-Ning; Zhu, Jin

doi:10.1007/s10118-018-2051-9

Cited by 3 publications

(5 citation statements)

References 39 publications

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“…Its chemical structure includes an ester and ether bond, which leads to a good flexibility in the polymer chain, mechanical properties, and biodegradability. Some popular aliphatic polyesters have been synthesized as polylactic acid (PLA) [24,25] through chemical methods, polycaprolactone (PCL) through ring-opening polymerization [26,27,28,29], polyhydroxybutyrate (PHB) [30,31] via bacterial synthesis (as poly(butylene succinate) (PBS)) [32,33,34], poly(propylene sebacate) (PPS) [35], poly(butylene adipate) (PBA) [36,37,38,39], poly(butylene itaconate) (PBI) [17,40,41], and their copolymers. Aliphatic copolyesters have also been synthesized to improve their physical properties.…”

Section: Introductionmentioning

confidence: 99%

“…PBA is a typical polymorph aliphatic polyester. Therefore, the various crystal phases could be transformed in α-, β-, and an α-β complex, through an isothermal annealing process [38,39]. The α-phase is related to the thermodynamic stability, while the β-phase is a metastable phase and can be transformed into an α-phase, via annealing treatment.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Ethylenediaminetetraacetic Acid on Unsaturated Poly(Butylene Adipate-Co-Butylene Itaconate) Copolyester with Low-Melting Point and Controllable Hardness

2019

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A series of copolyesters, poly(butylene adipate-co-butylene itaconate) (PBABI), was synthesized using melt polycondensation from adipic acid (AA), itaconic acid (IA), 1,4-butanediol (1,4-BDO), and ethylenediaminetetraacetic acid (EDTA). 1H-NMR, FT-IR, GPC, DSC, TGA, DMA, XRD, Shore D, and tensile test were used to systematically characterize the structural and composition/physical properties of the copolyesters. It was found that the melting point (Tm) and crystallization temperature (Tc) of the copolyesters were, respectively, between 21.1 to 57.5 °C and −6.7 to 29.5 °C. The glass transition (Tg) and the initial thermal decomposition (Td-5%) temperatures of the PBABI copolyesters were observed to be between −53.6 to −55.8 °C and 313.6 and 342.1 °C at varying ratios of butylene adipate (BA) and butylene itaconate (IA), respectively. The XRD feature peak was identified at the 2θ values of 21.61°, 22.31°, and 23.96° for the crystal lattice of (110), (020), and (021), respectively. Interestingly, Shore D at various IA ratios had high values (between 51.3 to 62), which indicated that the PBABI had soft plastic properties. The Young’s modulus and elongation at break, at different IA concentrations, were measured to be at 0.77–128.65 MPa and 71.04–531.76%, respectively, which could be attributed to a close and compact three-dimensional network structure formed by EDTA as a crosslinking agent. There was a significant bell-shaped trend in a BA/BI ratio of 8/2, at different EDTA concentrations—the ∆Hm increased while the EDTA concentration increased from 0.001 to 0.05 mole% and then decreased at an EDTA ratio of 0.2 mole%. Since the PBABI copolymers have applications in the textile industry, these polymers have been adopted to reinforce 3D air-permeable polyester-based smart textile. This kind of composite not only possesses the advantage of lower weight and breathable properties for textiles, but also offers customizable, strong levels of hardness, after UV curing of the PBABI copolyesters, making its potential in vitro orthopedic support as the “plaster of the future”.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Ethylenediaminetetraacetic Acid on Unsaturated Poly(Butylene Adipate-Co-Butylene Itaconate) Copolyester with Low-Melting Point and Controllable Hardness

2019

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“…The molecular structures of PBCE and two isomers of 1,4-cyclohexylene are illustrated in Figure a. Normally, mixed isomers reduce the regularity of the chains and cause a depression in melting temperature ( T m ) and degree of crystallinity. , When PBCE contains nearly 100% trans isomers, the T m can reach ∼170 °C, and the crystallinity is ∼40% . The 1 H NMR spectrum is shown in Figure b.…”

Section: Resultsmentioning

confidence: 99%

“…4,7−12 PBCE can copolymerize with other monomers, such as dimethyl diglycolate (DMDG), camphoric acid (CA), and bis(hydroxylbutylene) adipate (BHBA), providing versatile thermal and other physical properties. 4,7,8,13 PBCE is a highly crystalline polymer, as shown by X-ray diffraction. However, the crystal structure of PBCE has not yet been solved, which limits the deeper comprehension of the solid-state structure.…”

Section: Introductionmentioning

confidence: 93%

“…The modulus and strength of PBCE are 830 and 40 MPa, more flexible than poly( l -lactic acid) (PLLA), which meets the requirements for food packaging, gas-barrier films, and plastics . The possibility of applications in tissue engineering has also been explored. ,− PBCE can copolymerize with other monomers, such as dimethyl diglycolate (DMDG), camphoric acid (CA), and bis(hydroxylbutylene) adipate (BHBA), providing versatile thermal and other physical properties. ,,, …”

Section: Introductionmentioning

confidence: 99%

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Crystal Structure and Polymorphism of Poly(butylene-trans-1,4-cyclohexane dicarboxylate)

Hu,

Ma,

Zhou

et al. 2024

Macromolecules

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The crystal structure analysis of a cycloaliphatic polyester, poly(butylene-trans-1,4-cyclohexane dicarboxylate) (PBCE), is performed by X-ray fiber diffraction. Depending on the cooling condition, two crystal forms are identified (α and β). The α form is obtained by slow cooling from the melt, while the β form is generated during fast cooling. The α form has a triclinic unit cell with a P1̅ space group, with parameters of a = 5.46 Å, b = 6.89 Å, c = 13.51 Å, α = 138.37°, β = 109.42°, and γ = 63.30°. One PBCE chain is located in the unit cell with the chair conformation aliphatic rings and all-trans-conformation methylene segmental parts. The structural transition and polymorphic transition during the heating and stretching process of PBCE are investigated by in-situ X-ray scattering. During heating, both the α and β forms show significant lattice distortion and eventually transform directly into the isotropic melt state. The volumetric thermal expansion coefficient of the PBCE α form was twice that of its unsaturated analogue, poly(butylene terephthalate). On the other hand, the irreversible β−α transition occurs during stretching, indicating that the β form is a metastable phase.

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Physical aging of a biodegradable alicyclic polymer: poly (pentamethylene trans-1,4-cyclohexanedicarboxylate)

Mejres,

Hallavant,

Guidotti

et al. 2024

Journal of Non-Crystalline Solids

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Isothermal Crystallization Kinetics and Crystalline Morphologies of Poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) Copolymers

Cited by 3 publications

References 39 publications

Effect of Ethylenediaminetetraacetic Acid on Unsaturated Poly(Butylene Adipate-Co-Butylene Itaconate) Copolyester with Low-Melting Point and Controllable Hardness

Effect of Ethylenediaminetetraacetic Acid on Unsaturated Poly(Butylene Adipate-Co-Butylene Itaconate) Copolyester with Low-Melting Point and Controllable Hardness

Crystal Structure and Polymorphism of Poly(butylene-trans-1,4-cyclohexane dicarboxylate)

Physical aging of a biodegradable alicyclic polymer: poly (pentamethylene trans-1,4-cyclohexanedicarboxylate)

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