Synthesis of high transparency polyarylates containing cyclohexane group

Yu, Zhong‐Zhen; Yan, Guangming; Zhang, Gang; Liu, Suilin; Yang, Jie

doi:10.1016/j.polymer.2019.122047

Cited by 18 publications

(30 citation statements)

References 37 publications

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“…In addition, when the amount of bis(hydroxyphenyl)butane units in the copolyesters increased, the T g values declined. This was due to the structural symmetry of copolyesters being broken by the side‐ethyl units, which decreased the orderly stacking of chain segments, inhibited crystallinity and thus promoted the flow of molecular chains 9,33 . There are no apparent endothermic melting peaks in the DSC curve.…”

Section: Resultsmentioning

confidence: 99%

“…This was due to the structural symmetry of copolyesters being broken by the side-ethyl units, which decreased the orderly stacking of chain segments, inhibited crystallinity and thus promoted the flow of molecular chains. 9,33 There are no apparent endothermic melting peaks in the DSC curve. Thus, DSC measurements also revealed these copolyesters had amorphous properties, consistent with the XRD results.…”

Section: Polymer Performance Characterizationmentioning

confidence: 99%

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Synthesis of aromatic polyesters derived from bisphenol‐A and bis(hydroxyphenyl)butane with diacyl chloride monomers

Wang

Ding

et al. 2022

J of Applied Polymer Sci

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A series of aromatic polyesters were prepared by the reaction of bisphenol‐A and bis(hydroxyphenyl)butane with diacyl chloride monomers by phase transfer interfacial polycondensation in order to improve the processability of the bisphenol A‐based polyarylate. The microstructure, molecular weight, crystallinity, solubility, thermal properties, mechanical properties, and optical properties of the prepared copolyesters were investigated. Inherent viscosities of the copolyesters are in the range of 0.14–0.53 dl g−1, and their average molecular weights are 7362–44,413 g mol−1, respectively. The feed compositions and copolymer compositions were nearly identical. The results show that with the increase in the content of side ethyl units, the copolyester gradually transforms into an amorphous structure, which is also verified by the improvement in dissolution properties. When the copolyester backbone was introduced into the side ethyl units, the thermal decomposition temperature was less affected and varied in the range of about 10°C, while the value of glass transition temperature reduced from 196.5°C to 165.1°C. The mechanical properties of the polymers are similar to those of the industrial commodity U‐100. In addition, the copolyester films have good optical properties, and the transmittance reached the maximum value of 98.41% when the content of bis(hydroxyphenyl)‐butane was 10%.

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Section: Resultsmentioning

confidence: 99%

Section: Polymer Performance Characterizationmentioning

confidence: 99%

Synthesis of aromatic polyesters derived from bisphenol‐A and bis(hydroxyphenyl)butane with diacyl chloride monomers

Wang

Ding

et al. 2022

J of Applied Polymer Sci

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“…And the optical properties of copolyarylate can be changed by fine‐tuning the PR content. This phenomenon can be attributed to the fact that the color of the synthesized polymer deepens due to the introduction of PR groups, which makes light transmission difficult and leads to a decrease in light transmission, so PR can be used as a modifier of optical properties to have potential applications in certain scenarios 4,31,32 …”

Section: Resultsmentioning

confidence: 99%

“…Polyarylate is a high‐performance thermoplastic special engineering plastic, which has high strength and high modulus, 1 excellent thermal stability, 2 chemical resistance, 3 optical properties, 4,5 and low dielectric constant, 6 which are well used in aerospace, medical devices, 5G materials, gas separation membranes and other fields 7–9 . However, due to the regular chain structure, the high melting temperature of polyarylates leads to poor processing fluidity 10 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of copolyarylates containing phenol red units

Wang

et al. 2022

J of Applied Polymer Sci

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A series of novel copolyarylates(co‐PARs) containing phenol red units in the backbone were synthesized by interfacial polymerization at 10°C from bisphenol A (BPA), phenol red (PR) and diacid chloride monomers. The obtained copolyarylates (co‐PARs) are all amorphous, the inherent viscosity (ηinh) of 0.22–0.62 dl g−1, and the number‐ and weight‐average molecular weight are 10,200–46,200 and 38,600–203,600, respectively. Adding a small number of PR units to the molecular chains improved the processing fluidity of polyarylates, and the glass transition temperatures (Tg) decreased from 202.8 to 166.7°C. In addition, the co‐PARs have excellent thermal stability with the maximum thermal decomposition temperature of 532.4–545.2°C. The co‐PARs show the best mechanical properties (57.6 MPa) when the PR content is 15 mol%. The transmittances of the co‐PARs at 400 and 450 nm are 79.2%–97.9% and 87.0%–99.8%, respectively, and the cut‐off wavelength is between 320 and 328 nm. The designed and synthesized copolyarylates can be considered as a promising and easy‐to‐process high‐performance engineering plastic.

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“…Lately, numerous research articles have focused on creating high-performance macromolecules involving Isophthaloyl group in the polymer backbone with a wide variety of aromatic diols as they possess phenomenal properties providing a wide scope of utilizations. 4,5 In the last few decades, it has drawn much attention from researchers to produce new copolyesters containing isophthalate and terephthalate units which have been described to become less likely to crystallizable perfectly coupled with dropping melting temperatures due to the association with isophthalate units. 6 Modification in tensile strength, thermal and mechanical properties due to induction of isophthalate portions into the backbone of terephthalate polyesters has been reported by Karayannidis, G.P.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Studies on Aromatic Copolyester With Anticancer Activity Derived From 4,4’- Dihydroxybiphenyl and 3,5-Dihydroxytoluene

Sivaramakrishnan¹,

Elango²

2021

RJC

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In this investigation, a new wholly aromatic random copolyester containing 4,4'-dihydroxybiphenyl, 3,5dihydroxytoluene and Isophthaloyl chloride was synthesized using the solution polycondensation methodology in the mole ratio 2:1:3 and its solubility along with inherent viscosity were determined. The chemical structure of the copolyester was established by traditional spectroscopic techniques. The physical parameters of the polyester were studied employing WAXD studies and the thermal stability along with phase transitions were investigated employing TGA and DSC data. The morphological features in the polyester were probed using Scanning Electron Microscopy. The anticancer activity of copolyester was verified using HeLa (Cervical carcinoma) cell line employing MTT assay.

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Synthesis of high transparency polyarylates containing cyclohexane group

Cited by 18 publications

References 37 publications

Synthesis of aromatic polyesters derived from bisphenol‐A and bis(hydroxyphenyl)butane with diacyl chloride monomers

Synthesis of aromatic polyesters derived from bisphenol‐A and bis(hydroxyphenyl)butane with diacyl chloride monomers

Synthesis and properties of copolyarylates containing phenol red units

Synthesis and Studies on Aromatic Copolyester With Anticancer Activity Derived From 4,4’- Dihydroxybiphenyl and 3,5-Dihydroxytoluene

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