Bisphenol A-based co-polyarylates: synthesis, properties and thermal decomposition mechanism

Liu, Pengqing; Zeng, Lei; Ye, Guangdou; Xu, Jianjun

doi:10.1007/s10965-013-0279-1

Cited by 16 publications

(21 citation statements)

References 22 publications

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“…This finding was consistent with the DSC studies where PP0, PP10 and PP30 showed melting peaks (Fig. (a)) and with previous reports stating that these signals indicated a semi‐crystalline nature. Introducing PP into the PP0 backbone effectively reduced the intensity of the peaks.…”

Section: Resultssupporting

confidence: 93%

High‐performance soluble copolyarylate based on phenolphthalein: synthesis, characterization and properties

Guan

Nie

Wang

et al. 2019

Polymer International

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A series of copolyarylates (PP0–PP100) containing phthalide groups was synthesized via interfacial polymerization from a mixture of phenolphthalein (PP) and bisphenol A with molar equivalent of terephthalyl chloride. Incorporating PP into the polymer chain improved the solubility of the polyarylates in common organic solvents. The glass transition temperature (191–314 °C), residual weight percentage, Young's modulus (1.7–2.8 GPa), solubility and complex melt viscosity of the copolyarylates increased with increasing PP units in the copolymerization. By contrast, crystallinity and elongation at break (14.1 to 11.2%) of the copolyarylates decreased with increasing PP units in the polymer backbone. When the PP content increased over 30 mol% (PP30), the copolyarylates became amorphous polymers. When the PP content was below 30 mol%, the copolyarylates exhibited good melt processability. With regards to its solubility, thermal stability, mechanical properties and melt processability, PP30 may be considered as a promising candidate in the field of processable high‐performance engineering plastics. © 2019 Society of Chemical Industry

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Section: Resultssupporting

confidence: 93%

High‐performance soluble copolyarylate based on phenolphthalein: synthesis, characterization and properties

Guan

Nie

Wang

et al. 2019

Polymer International

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“…Most of these ways were investigated extensively except by utilizing a kinked monomer. Bisphenol A (BPA) is widely used as the main component of commercialized polycarbonate and polyarylate . However, this monomer has not been extensively used to synthesize TLCP .…”

Section: Introductionmentioning

confidence: 99%

Aromatic liquid crystalline copolyesters with low T_m and high T_g: Synthesis, characterization, and properties

Wei

Cakmak

Chen

et al. 2014

J of Applied Polymer Sci

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In this study, a series of aromatic copolyesters P‐BPAx with lower melting temperature and higher glass transition temperature derived from hydroxybenzoic acid (HBA), 6‐hydroxy‐2‐naphthoic acid (HNA), bisphenol A (BPA) and terephthalic acid (TA) were synthesized via melt polymerization. The copolyesters were characterized by FTIR, solid state 13C NMR, DSC, TGA, polarized optical microscopy, X‐ray diffraction, and rheometry measurements. With addition of BPA, the resulting copolyester's melting temperature decreased from 260 to 221°C and its glass transition temperature increased from 70 to 135°C, compared with the parent copolyester P‐HBA70 (HBA/HNA copolymer). With exception of copolyester P‐BPA5.0 (225–280°C), the copolyesters could maintain liquid crystalline behavior in a broad temperature range from 230°C to higher than 410°C. The ability to form nematic liquid crystalline phase disappeared when BPA concentration became higher than 15 mol %. X‐ray diffraction analysis showed crystallinity decreased as the BPA content increased. A slightly distorted O" and a substantially distorted O′ orthorhombic phase was observed for P‐BPA2.5. Upon annealing at 220°C, the O" phase disappeared and the O′ phase became stronger gradually. Rheology study data showed the ability to process the copolyesters improved in those compositions containing <2.5 mol % BPA. Continuing to increase concentrations of BPA, they became intractable. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40487.

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“…Copolymerization is one of the most useful approaches for improving solubility and, inturn, processability of polymers. Since BPA and TPC based polyester [37] is insoluble in common organic solvents such as chloroform and dichloromethane, it was of interest to study the effect of incorporation of HPPDP on the solubility properties of polyesters derived from BPA and TPC. Accordingly, TPC-based copolyesters were synthesized by varying composition of BPA and HPPDP.…”

Section: Synthesis Of 4-(4-hydroxyphenoxy)-3-pentadecylphenolmentioning

confidence: 99%

“…It is to be noted that reference polyesters based on 4, 4' oxybisphenol with TPC and BPA with TPC (PE-VIII) are reported to be insoluble in common organic solvents. [37,38] The solubility tests of copolyesters indicated that even at 15 mol% incorporation of HPPDP, the solubility of copolyesters in common organic solvents was improved significantly. This improvement in solubility indicates that the incorporation of pendent pentadecyl chains in polyester backbone disturbs the dense chain packing of polymer chains which facilitates penetration of the solvent molecules.…”

Section: -(4-hydroxyphenoxy)-3-pentadecylphenol and Bpa With Terephthmentioning

confidence: 99%

“…The temperatures at 10 % weight loss (T 10 ) of polyesters were determined and the values are given in Table 1. T 10 values for polyesters derived from HPPDP and [37] indicated a decrease in the thermal stability due to the presence of thermally labile aliphatic pentadecyl chain. Differential scanning calorimetry (DSC) was used for estimation of glass transition (Tg) temperatures of (co)polyesters.…”

Section: Thermal Propertiesmentioning

confidence: 99%

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Processable aromatic polyesters based on bisphenol derived from cashew nut shell liquid: synthesis and characterization

et al. 2014

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A new bisphenol viz., 4-(4-hydroxyphenoxy)-3-pentadecylphenol (HPPDP) was synthesized starting from cashew nut shell liquid (CNSL). Aromatic (co)polyesters containing ether linkages in the main chain and pendent pentadecyl chains were synthesized by the interfacial polycondensation of HPPDP with terephthalic acid chloride (TPC), isophthalic acid chloride (IPC) and a mixture of TPC and IPC (50:50 mol %) and by polycondenation of varying composition of HPPDP and bisphenol-A (BPA) with TPC. The resultant (co)polyesters exhibited inherent viscosities in the range 0.70-1.21 dL g −1 and number-average molecular weights in the range 16,000-48,200 (GPC, polystyrene standard). Polyesters were soluble in common organic solvents such as chloroform and dichloromethane and could be cast into films from chloroform solution. Polyesters exhibited T 10 values in the range 430-455°C and Tg values were in the range 29-202°C. Dynamic mechanical storage modulus and maximum on transition of tan δ curve decreased with increased content of HPPDP in copolyesters. Importantly, the large difference between Tg and T 10 values offers the possibility to process these polyesters in the melt.

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Bisphenol A-based co-polyarylates: synthesis, properties and thermal decomposition mechanism

Cited by 16 publications

References 22 publications

High‐performance soluble copolyarylate based on phenolphthalein: synthesis, characterization and properties

High‐performance soluble copolyarylate based on phenolphthalein: synthesis, characterization and properties

Aromatic liquid crystalline copolyesters with low T_m and high T_g: Synthesis, characterization, and properties

Processable aromatic polyesters based on bisphenol derived from cashew nut shell liquid: synthesis and characterization

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Bisphenol A-based co-polyarylates: synthesis, properties and thermal decomposition mechanism

Cited by 16 publications

References 22 publications

High‐performance soluble copolyarylate based on phenolphthalein: synthesis, characterization and properties

High‐performance soluble copolyarylate based on phenolphthalein: synthesis, characterization and properties

Aromatic liquid crystalline copolyesters with low Tm and high Tg: Synthesis, characterization, and properties

Processable aromatic polyesters based on bisphenol derived from cashew nut shell liquid: synthesis and characterization

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Aromatic liquid crystalline copolyesters with low T_m and high T_g: Synthesis, characterization, and properties