Poly(amine‐amide‐imide)s Bearing Pendent <i>N</i>‐Carbazolylphenyl Moieties: Synthesis and Electrochromic Properties

Liou, Guey‐Sheng; Chen, Hwei-Wen; Yen, Hung‐Ju

doi:10.1002/macp.200600130

Cited by 34 publications

(13 citation statements)

References 58 publications

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“…synthesized polyimides with TPA groups and investigated their electrochromic properties in 2002 . Since 2005, Liou and Hsiao groups have prepared a number of TPA‐containing polymers including polyamides, polyimides, polyesters, and studied their electrochromic properties . The TPA moieties were used as hole‐transporting and electrochromic functional unit.…”

Section: Introductionmentioning

confidence: 99%

“…22 Since 2005, Liou and Hsiao groups have prepared a number of TPA-containing polymers including polyamides, polyimides, polyesters, and studied their electrochromic properties. [23][24][25][26][27][28] The TPA moieties were used as hole-transporting and electrochromic functional unit. Electron-rich TPAs often form stable radical cations which exhibit remarkable color changes during the oxidation process.…”

Section: Introductionmentioning

confidence: 99%

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Color combination of polysiloxane polymer by introducing two different triphenylamine based pendent groups for electrochromism

Hao

Wang

Niu

et al. 2018

J of Applied Polymer Sci

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A novel triphenylamine (TPA)‐containing polysiloxane (PTPASi) named P(PT‐TB‐TPA)Si has been synthesized through hydrosilylation method by the reaction of poly(methylhydrosiloxane) (PMHS) with two different TPA‐based alkenes (TPAA) simultaneously for electrochromic application. The thermal stability and cycling stability of the P(PT‐TB‐TPA)Si were enhanced by grafting TPA onto polysiloxane since the force of adhesion between the P(PT‐TB‐TPA)Si film and the ITO substrate can be improved. The morphology of the polymer after electro‐oxidation was investigated and no significant change was observed revealing good stability. Otherwise, the effect of two different TPA‐based alkenes which were introduced into one polymer through covalent bond on cyclic voltammetry and electrochromic spectra was studied. The color of the polymer changed from colorless to red then to deep purple which obeys the color mixing theory and reveals multielectrochromic property. In addition, the potential switching property of the P(PT‐TB‐TPA)Si at the temperature of 150 °C has been investigated. The high thermal stability makes the polymer potential for relatively high temperature and/or long‐term cycling application. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46522.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Color combination of polysiloxane polymer by introducing two different triphenylamine based pendent groups for electrochromism

Hao

Wang

Niu

et al. 2018

J of Applied Polymer Sci

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“…При этом около 25% больных впервые обращаются за помощью уже с III стадией или с местно-распространённым заболеванием. Метастатический РМЖ считается наиболее частой причиной смерти женщин 50-59 лет [1]. Важное значение в патогенезе РМЖ принадлежит циклооксигеназе-2 (COX-2) и 15-гидроксипростагландиндегидрогеназе (15-HPGD).…”

Section: Introductionunclassified

The connection of miR-21 and miR-155 with regulation of 15-HPGDH mRNA in human breast cancer cells

Никифорова

et al. 2016

BIOMED KHIM

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Breast cancer is the most frequent cancer and the leading cause of cancer-related deaths in women worldwide. We determined the expression of COX2, COX1, 15-HPGDH mRNA and miRNAs (miR-21, miR-155) in three estrogen positive human breast cancer cell lines (MCF-7, BT-474, ZR-75-1). According to the results of three independent experiments the amount of COX1 and COX2 mRNA was significantly higher in the ZR-75-1 than in MCF-7 and BT-474 cells. Levels of total 15-HPGDH; functional 15-HPGDH mRNA in BT-474 cell line were lower than in MCF-7 and ZR-75-1 ones. The synthesis of 15-HPGDH enzyme in BT-474 line was blocked at the nuclear immature pre-mRNA processing level. miR-155 expression level was significantly lower than miR-21 in breast cancer cell lines. Correlations between the dysregulation of miR-21, miR-155 and 15-HPGDH, COX-1, COX-2 mRNA were identified. Expression of miR-21 was high in MCF-7, ZR-75-1 and BT-474 cell lines. Our results show that miR-21 and miR-155 regulate activity of several genes in cancer cells, their effect on the individual genes was in some cases cumulative. Based on our results, we concluded that miR-21, miR-155 suppress the work of tumor suppressor gene 15-HPGDH and induce potential oncogene COX-2 that promotes cell malignancy and metastasis of breast cancer.

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“…If the pendent groups are carefully chosen, it is possible for one to promote solubility without impairing the thermal and mechanical properties to any great extent. The combination of these two structural modifications minimized the trade‐off between the processability and useful/positive properties, such as the solubility of aromatic PAIs 11–24…”

Section: Introductionmentioning

confidence: 99%

Modified poly(ether–imide–amide)s with pendent benzazole structures: Synthesis and characterization

Toiserkani

2012

J of Applied Polymer Sci

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Three series of novel modified poly(etherimide-amide)s (PEIAs) having pendent benzazole units were prepared from diimide-dicarboxylic acids, including 2-[3,5-bis(4-trimellitimidophenoxy) phenyl]benzimidazole, 2- [3,5-bis(4-trimellitimidophenoxy) phenyl]benzoxazole, and 2-[3,5-bis(4-trimellitimidophenoxy) phenyl]benzothiazole, with various diamines by direct polycondensation in N-methyl-2-pyrrolidone with triphenyl phosphite and pyridine as condensing agents. These new diimide-dicarboxylic acids containing ether linkages and benzazole pendent groups were synthesized by the condensation reaction of 5-(2-benzimidazole)-1,3-bis(4-aminophenoxy)benzene, 5-(2benzoxazole)-1,3-bis(4-aminophenoxy)benzene, or 5-(2-benzothiazole)-1,3-bis(4-aminophenoxy)benzene with trimellitic anhydride, respectively. All of the polymers were obtained in quantitative yields with inherent viscosities of 0.39-0.65 dL/g. For comparative purposes, the corresponding unsubstituted PEIAs were also prepared by the reaction of a diimide-dicarboxylic acid monomer lacking benzazole pendent groups, namely, 3,5-bis(4-trimellitimidophenoxy) phenyl, with the same diamines under similar conditions. The solubilities of the modified PEIAs in common organic solvents and their thermal stability were enhanced compared to those of the corresponding unmodified PEIAs. The glass-transition temperature, 10% weight loss temperature, and char yields at 800 C were 19-31 C, 22-57 C and 4-8% higher, respectively, than those of the unmodified polymers. V C 2012 Wiley Periodicals, Inc. J Appl Polym Sci 125: [1576][1577][1578][1579][1580][1581][1582][1583][1584][1585] 2012

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Poly(amine‐amide‐imide)s Bearing Pendent N‐Carbazolylphenyl Moieties: Synthesis and Electrochromic Properties

Cited by 34 publications

References 58 publications

Color combination of polysiloxane polymer by introducing two different triphenylamine based pendent groups for electrochromism

Color combination of polysiloxane polymer by introducing two different triphenylamine based pendent groups for electrochromism

The connection of miR-21 and miR-155 with regulation of 15-HPGDH mRNA in human breast cancer cells

Modified poly(ether–imide–amide)s with pendent benzazole structures: Synthesis and characterization

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