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首页> 外文期刊>RSC Advances >Synthesis and characterization of poly(amide-imide)s derived from a new ortho-functional unsymmetrical dicarboxylic acid
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Synthesis and characterization of poly(amide-imide)s derived from a new ortho-functional unsymmetrical dicarboxylic acid

机译：新型官能非对称二羧酸衍生的聚（酰胺 - 酰亚胺）S的合成与表征

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摘要

A new diacid monomer containing an imide ring and a methoxy pendant group, 3-trimellitimido-4-methoxybenzoic acid TMBA, was synthesized and characterized. The diacid was used to synthesize six novel poly(amide-imide) s, (PAIs), through a polycondensation reaction with different diamines in the presence of triphenylphosphite, calcium chloride, and pyridine in N-methyl-2-pyrrolidinone. The chemical structures of the diacid monomer and poly(amide-imide) s were confirmed by FTIR and H-1 NMR spectroscopy. All PAIs were obtained in high yield with inherent viscosities ranging from 0.32 to 0.54 dL g(-1). They were soluble in aprotic solvents, and exhibited film forming ability. The PAI films displayed glass transition temperatures between 281 and 377 degrees C, as determined by dynamic mechanical analysis, and they show high thermal stability. Gas permeability results for TMBA-6FDA film show that this PAI could be an interesting material for polymeric membranes aimed to CO2 separation process.
机译：合成含有酰亚胺环和甲氧基侧链3-苯乙烯纤维-4-甲氧基苯甲酸TMBA的新的二酸单体。二酸通过在三苯基磷酸盐，氯化钙和N-甲基-2-吡咯烷酮中存在不同二胺的缩聚反应来合成六种新的聚（酰胺 - 酰亚胺）S，（PAI）。通过FTIR和H-1 NMR光谱证实了二酸单体和聚（酰胺 - 酰亚胺）S的化学结构。所有PAI均以高产率获得，其固有粘度范围为0.32至0.54dLg（-1）。它们可溶于非质子溶剂，并表现出成膜能力。 PAI薄膜在281至377摄氏度之间显示玻璃化转变温度，如动态机械分析所确定的，并且它们显示出高的热稳定性。 TMBA-6FDA薄膜的气体渗透率结果表明，该PAI可能是用于聚合物膜的有趣材料，用于CO 2分离过程。

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  • 来源
    《RSC Advances》 |2018年第1期|共7页
  • 作者

    Canto-Acosta Rodrigo Javier; Loria-Bastarrachea Maria Isabel; Carrillo-Escalante Hugo Joel; Hernandez-Nunez Emanuel; Aguilar-Vega Manuel; Santiago-Garcia Jose Luis;

  • 作者单位

    Ctr Invest Cient Yucatan AC Unidad Mat Calle 43 X 32 &

    34 130 Col Chuburna de Hidalgo Merida 97205 Yucatan Mexico;

    Ctr Invest Cient Yucatan AC Unidad Mat Calle 43 X 32 &

    34 130 Col Chuburna de Hidalgo Merida 97205 Yucatan Mexico;

    Ctr Invest Cient Yucatan AC Unidad Mat Calle 43 X 32 &

    34 130 Col Chuburna de Hidalgo Merida 97205 Yucatan Mexico;

    IPN Ctr Invest &

    Estudios Avanzados Unidad Merida CONACYT Dept Recursos Mar AP 73 Cordemex Merida 97310 Yucatan Mexico;

    Ctr Invest Cient Yucatan AC Unidad Mat Calle 43 X 32 &

    34 130 Col Chuburna de Hidalgo Merida 97205 Yucatan Mexico;

    Ctr Invest Cient Yucatan AC Unidad Mat Calle 43 X 32 &

    34 130 Col Chuburna de Hidalgo Merida 97205 Yucatan Mexico;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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