Co‐poly(aryl ether sulfone)s containing phthalimidine moiety in the main chain

Ghosh, Anindita; Maji, Samarendra; Banerjee, Susanta; Voit, Brigitte

doi:10.1002/pat.1579

Cited by 9 publications

(12 citation statements)

References 25 publications

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“…The char yields of (co)polyesters at 800 °C were in the range 29–41%. The higher % char yield values of polyesters could be attributed to the presence of cardo phthalimidine groups which are known for their excellent thermal stability characteristics . The % char yield values tend to increase with increase in the mol % content of PPH‐MA in (co)polyesters.…”

Section: Resultsmentioning

confidence: 99%

Design and Synthesis of Aromatic Polyesters Bearing Pendant Clickable Maleimide Groups

Nagane

Kuhire

Jadhav

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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A bisphenol bearing pendant maleimide group, namely, N‐maleimidoethyl‐3, 3‐bis(4‐hydroxyphenyl)‐1‐isobenzopyrrolidone (PPH‐MA) was synthesized starting from phenolphthalein. Aromatic (co)polyesters bearing pendant maleimide groups were synthesized from PPH‐MA and aromatic diacid chlorides, namely, isophthaloyl chloride (IPC), terephthaloyl chloride (TPC), and 50:50 mol % mixture of IPC and TPC by low temperature solution polycondensation technique. Copolyesters were also synthesized by polycondensation of different molar proportions of PPH‐MA and bisphenol A with IPC. Inherent viscosities and number‐average molecular weights of aromatic (co)polyesters were in the range of 0.52–0.97 dL/g and 20,200–32,800 g/mol, respectively indicating formation of medium to reasonably high‐molecular‐weight polymers. 13C NMR spectral analysis of copolyesters revealed the formation of random copolymers. The 10% weight loss temperature of (co)polyesters was found in the range 470–484 °C, indicating their good thermal stability. A selected aromatic polyester bearing pendant maleimide groups was chemically modified via thiol‐maleimide Michael addition reaction with two representative thiol compounds, namely, 4‐chlorothiophenol and 1‐adamantanethiol to yield post‐modified polymers in a quantitative manner. Additionally, it was demonstrated that polyester containing pendant maleimide groups could be used to form insoluble crosslinked gel in the presence of a multifunctional thiol crosslinker. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 630–640

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Section: Resultsmentioning

confidence: 99%

Design and Synthesis of Aromatic Polyesters Bearing Pendant Clickable Maleimide Groups

Nagane

Kuhire

Jadhav

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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“…During the last few decades, a significant effort has been devoted to incorporating heterocyclic units into the polymer backbone for developing novel high-performance materials [1][2][3][4]. Among of these newly synthesized polymers, phenyl-striazine polymers have been well-established, in a general sense, as a class of polymeric materials of major academic and industrial importance due to their high performance as well as low cost [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of phenyl-s-triazine moieties on thermal stability and degradation behavior of aromatic polyether sulfones

Liu

et al. 2012

J Polym Res

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The effect of the incorporation of phenyl-striazine units into the main chain of phthalazinone-based polyether sulfones on initial decomposition temperature, activation energy, thermal-mechanical property and possible degradation mechanism has been investigated. To this purpose, decomposition of poly(phthalazinone ether sulfone phenyl-s-triazine) copolymers (PPESPs) of different monomer compositions have been studied by utilizing thermogravimetry and differential scanning calorimetry. Nonisothermal experiments under nitrogen were performed, and the apparent activation energy (E a ) was calculated by isoconversional and conversional methods including the methods of Flynn-Wall-Ozawa, Friedman and Kissinger. In the conversion range (5-30%) studied, solid-state decomposition process of PPESPs is found to be a mechanism involving phase boundary controlled reaction (E a : 189-201 kJ mol −1 ) except that phenyl-s-triazine-rich copolymers exhibit a mechanism involving three-dimensional diffusion (E a : 196-225 kJ mol −1 ) in terms of Coats-Redfern method. The phenyl-s-triazine-rich copolymers display much higher E a and slighter mechanical property-change compared to sulfone-rich copolymers and generic aromatic polyether sulfone, suggesting strong stabilizing effect of the phenyl-striazine moieties.

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“…Hyperbranched polymers have consecutive branching architectures and show unique properties . The most common strategy for synthesizing hyperbranched polymers is a self‐polycondensation of AB 2 type monomers.…”

Section: Introductionmentioning

confidence: 99%

Antiplatelet adhesion behavior of hyperbranched poly(l‐lactide)s containing glutamic acid terminal groups

Jikei

Kobayashi

Matsumoto

et al. 2018

J of Applied Polymer Sci

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The surface properties and antiplatelet adhesion behavior of terminally functionalized hyperbranched poly(l‐lactide)s (HB PLLAn‐Glu, n = 5, 10, 20) were examined. Contact angle changes and X‐ray photoelectron spectroscopic measurements indicated that the hydrated glutamic acid units in HB PLLAn‐Glu films migrated to the surface during immersing in water and unique microdomains were observed from the HB PLLA10‐Glu film after water immersion. HB PLLA10‐Glu and HB PLLA5‐Glu prevented platelet adhesion, but HB PLLA20‐Glu showed the typical platelet adhesion response for a hydrophobic surface. Both the high hydrophilicity and microdomain formation of HB PLLAn‐Glu contributed to the efficient antiplatelet adhesion behavior. The glutamic acid‐terminated HB PLLA10‐Glu films were more effective at preventing platelet adhesion than the 2‐methoxyethoxy‐terminated HB PLLA10 films. This study is the first example of platelet adhesion properties being controlled by the terminal functional groups and branching density of hyperbranched polymers. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46910.

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Co‐poly(aryl ether sulfone)s containing phthalimidine moiety in the main chain

Cited by 9 publications

References 25 publications

Design and Synthesis of Aromatic Polyesters Bearing Pendant Clickable Maleimide Groups

Design and Synthesis of Aromatic Polyesters Bearing Pendant Clickable Maleimide Groups

Effects of phenyl-s-triazine moieties on thermal stability and degradation behavior of aromatic polyether sulfones

Antiplatelet adhesion behavior of hyperbranched poly(l‐lactide)s containing glutamic acid terminal groups

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