Synthesis and characterization of a novel multiblock copolyester containing poly(ethylene succinate) and poly(butylene succinate)

Zhu, Qun-Ying; He, Yi-Song; Zeng, Jian‐Bing; Huang, Qing; Wang, Yu‐Zhong

doi:10.1016/j.matchemphys.2011.08.012

Cited by 49 publications

(28 citation statements)

References 32 publications

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“…28,29 Moreover, its melting point of about 43−45°C is the lowest of the above polyesters (43−45°C). 30 Thus, PPS is a good candidate for the soft phase, since its crystallization ability will be further compressed and provide elastic behavior after being copolymerized with another high melting point segment.…”

Section: Introductionmentioning

confidence: 99%

Biobased Thermoplastic Poly(ester urethane) Elastomers Consisting of Poly(butylene succinate) and Poly(propylene succinate)

Wang

et al. 2015

Ind. Eng. Chem. Res.

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In this study, a series of biobased and biodegradable thermoplastic poly(ester urethane)s (PEUs) with different compositions were synthesized via chain extension reaction of dihydroxyl terminated poly(propylene succinate) (HO-PPS-OH) and poly(butylene succinate) (HO-PBS-OH) with 4,4′-methylenediphenyl diisocyanate (MDI) as a chain extender. The thermal behaviors of PEUs were characterized by differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). All the PEUs showed a single glass transition temperature shifting with compositions; only one melting peak was observed when the feeding weight ratio of PPS to PBS was less than 8:2, and the crystallization ability of the PEUs decreased gradually with the increase in PPS content. The tensile and tensile hysteresis tests suggest that the PEUs showed the tensile behaviors of elastomers when the weight ratios of PPS/PBS were 7/3, 6/4, and 5/5, and the tensile hysteresis value and Young's modulus increased with increase in PBS content. The tensile strength and elongation at break of the three PEU elasomers exceeded 37 MPa and 1600%. Enzymatic (Candida rugosa lipase) hydrolysis study showed that the degradation rate increased with PPS fraction, according to the weight loss measurement and scanning electron microscopy observations.

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Section: Introductionmentioning

confidence: 99%

Biobased Thermoplastic Poly(ester urethane) Elastomers Consisting of Poly(butylene succinate) and Poly(propylene succinate)

Wang

et al. 2015

Ind. Eng. Chem. Res.

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“…The Avrami equation was used to analyze the isothermal crystallization kinetics of POA and POAS, which describes the relationship between relative crystallinity (X t ) and crystallization time (t) as follows: (2) where n is the Avrami exponent depending on the nucleation mechanism and growth dimension, and k is the overall crystallization rate constant. 41,42 The Avrami plots of POA and POAS90 at different T c values are displayed in Figure 6, and a series of parallel lines were obtained for both POA and POAS90, suggesting that the isothermal crystallization processes of the samples can be well described by the Avrami equation.…”

Section: Resultsmentioning

confidence: 99%

“…Until now, the crystallization behaviors, crystal structure, spherulitic morphology, and degradation of many aliphatic polyesters have been widely investigated. [1][2][3][4][5][6][7][8][9][10] Biodegradable polymers may have appropriate chemical, physical, and mechanical properties for their industry application. However, the high price and low degradation rate of them may restrict their wider application fields.…”

Section: Introductionmentioning

confidence: 99%

Crystallization behaviors and morphology of novel poly(octamethylene adipate-co-octamethylene succinate) and poly(octamethylene adipate)

Qiu

2015

Macromol. Res.

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Crystallization behaviors and morphology of novel biodegradable poly(octamethylene adipate-cooctamethylene succinate) (POAS) copolymers with different octamethylene succinate (OS) contents and their parent homopolymer poly(octamethylene adipate) (POA) were extensively investigated. Compared to POA, increasing the OS unit does not modify the crystal structures but slightly decreases the crystallinity values of POAS. The glass transition temperature values of POAS are greater than that of POA. Both the nonisothermal crystallization peak temperature and melting point temperature values of POAS decrease gradually with the increment of the OS unit. The overall isothermal melt crystallization rates of POAS decrease with increasing crystallization temperature and the OS content, while the crystallization mechanism does not change. The equilibrium melting point values of POAS are reduced with increasing the OS content, with respect to POA. The nucleation densities of POAS spherulites are reduce significantly; moreover, increasing crystallization temperature and the OS content reduces the spherulitic growth rates of POAS, relative to POA.

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“…PBSUIs were synthesized in 2 stages by chain extension reaction of dihydroxyl terminated poly(butylene succinate) (HO‐PBS‐OH) and DEAH with HDI as a chain extender . The first stage is to synthesize the dihydroxyl terminated poly(butylenes succinate) (HO‐PBS‐OH) via condensation polymerization of SA and BD with molar ratio of 1:1.2.…”

Section: Methodsmentioning

confidence: 99%

“…20,21 As a result, the melt viscosity of PBS can be significantly improved. 17,21 In our previous studies, a series of PBS ionomers (PBSUIs) were fabricated [21][22][23] and the physical and microstructure properties had explored, throughout. However, these PBSUIs had not been fabricated for microcellular foams via supercritical CO 2.…”

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Fabrication‐controlled morphology of poly(butylene succinate) nano‐microcellular foams by supercritical CO₂

Zhang

Wang

et al. 2018

Polymers for Advanced Techs

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Poly(butylene succinate) urethane ionomer (PBSUIs) foams with nano‐microcellular morphology were fabricated using supercritical CO2 (sc‐CO2) at different parameters. Effect of urethane ionic group (UIG) content (ranged from 1% to 5%) on the rheology and crystallization of PBSUIs were evaluated by intrinsic, dynamic rheological, X‐ray diffraction, and differential scanning calorimetry measurements. The results show that the complex viscosity of PBSUIs vastly improved, while their intrinsic viscosity and crystallinity decreased. They also evidenced that CO2 promoted the formation of crystallites in the amorphous and increased the Xc of PBSU and PBSUIs foams. Scanning electron microscope was employed to explore the influences of UIG content and foaming parameters on the morphologies of PBSUIs microcellular foams, and it revealed that UIG content was the dominated factor. The cell size and cell densities of PBSUIs microcellular foams were smaller than 5.0 micrometers and higher than 1.5 × 1010 cells/cm3, respectively, even foamed at diverse variations of foam temperature and pressure. Interestingly, PBSUIs with 3% and 5% UIG content achieved microcellular foams in nano‐cells, high‐stretched elliptical shape. The mechanism was ascribed that these PBSUIs with high melt viscosities could retard the CO2 bubbles to merge during the foam process and induce the cells to stretch and orient in depressururization direction. This study proposed a novel method for fabricating PBS nano‐microcellular foams.

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Synthesis and characterization of a novel multiblock copolyester containing poly(ethylene succinate) and poly(butylene succinate)

Cited by 49 publications

References 32 publications

Biobased Thermoplastic Poly(ester urethane) Elastomers Consisting of Poly(butylene succinate) and Poly(propylene succinate)

Biobased Thermoplastic Poly(ester urethane) Elastomers Consisting of Poly(butylene succinate) and Poly(propylene succinate)

Crystallization behaviors and morphology of novel poly(octamethylene adipate-co-octamethylene succinate) and poly(octamethylene adipate)

Fabrication‐controlled morphology of poly(butylene succinate) nano‐microcellular foams by supercritical CO₂

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Synthesis and characterization of a novel multiblock copolyester containing poly(ethylene succinate) and poly(butylene succinate)

Cited by 49 publications

References 32 publications

Biobased Thermoplastic Poly(ester urethane) Elastomers Consisting of Poly(butylene succinate) and Poly(propylene succinate)

Biobased Thermoplastic Poly(ester urethane) Elastomers Consisting of Poly(butylene succinate) and Poly(propylene succinate)

Crystallization behaviors and morphology of novel poly(octamethylene adipate-co-octamethylene succinate) and poly(octamethylene adipate)

Fabrication‐controlled morphology of poly(butylene succinate) nano‐microcellular foams by supercritical CO2

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Fabrication‐controlled morphology of poly(butylene succinate) nano‐microcellular foams by supercritical CO₂