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- W2890865624 abstract "To explore the relationship between crystallization and properties of biodegradable ionomers for improving comprehensive performances, poly(butylene succinate) phosphorus-containing ionomers (PBSIs-K) with different ionic group content were synthesized by condensation polymerization of succinic acid, 1,4-butanediol and phosphorous ion monomers (DHPPO-K). The chemical structures, experimental phosphorus content and intrinsic viscosities of PBSIs-K were determined by 1H and 31P NMR spectroscopy, inductively coupled plasma optical emission spectrometry and Ubbelohde viscometer, respectively. The effects of phosphorus-containing ionic group (PCIG) content on the thermal behavior, crystallization, rheological behavior of PBSIs-K were investigated by differential scanning calorimeter, polarizing optical microscopy, X-ray diffraction, rotational rheometer and dynamic mechanical analysis, respectively. They revealed that the crystallinity, grain diameter and spherulitic diameter of PBSIs-K initially increased and then reduced with the increase of PCIG content. The shear viscosity and Tg of PBSI7.5-K (7.5%PCIG content) increased due to physical crosslinking by ionic aggregates. Then the thermal conductivity, mechanical properties, hydrolytic degradation and gas barrier property of PBSIs-K were evaluated. The thermal conductivity of PBSI1-K (1%PCIG content) was strikingly promoted from 110 to 320 mW/m⋅k as the spherulitic diameter increased from 181 to 353 μm. Noteworthy, the elongation at breakage of PBSI7.5-K increased from 37% to 529% and the brittle-ductile transition was assigned to significant variations for PBSI7.5-K crystallization. Furthermore, hydrolytic degradation rate of PBSIs-K was dominated by PCIG content and was drastically accelerated when PCIG content ranged from 3% to 5%. The study revealed that the properties of PBSIs-K were dependent on PCIG content and provided a promising approach for biodegradable PBSI fabrication with versatile properties." @default.
- W2890865624 created "2018-09-27" @default.
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- W2890865624 date "2018-10-01" @default.
- W2890865624 modified "2023-10-15" @default.
- W2890865624 title "Synthesis of Poly(butylene succinate) phosphorus-containing ionomers for versatile crystallization and improved thermal conductivity" @default.
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- W2890865624 doi "https://doi.org/10.1016/j.polymer.2018.09.025" @default.
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