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Assessment of random aromatic co-polyamides containing two different bulky pendant groups

机译:评估含有两种不同笨重的侧基的随机芳族共聚酰胺

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This work reports the synthesis and assessment of random aromatic co-polyamides containing two different bulky pendant groups. The random aromatic co-polyamides are synthesized combining the monomers 5-tert-butylisophthalic acid and 5-(9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximido)isophthalic acid with three different diamines. The random aromatic co-polyamides are readily soluble and possess inherent viscosities in the range of 0.47-0.60 dLg(-1). Co-polyamide dense membranes are amorphous, and flexible with both good tensile strength (56.2-57.5 MPa) and tensile modulus (1.3-1.6 GPa). Permeability coefficients of the co-polyamide dense membranes are assessed for the gases He, O-2, N-2, CH4, and CO2. It is found that the combination of two bulky pendant groups, dibenzobarrelene and tert-butyl, in the backbone of the co-polyamides improves the gas permeability coefficient in comparison with their corresponding homopolyamides. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45884.
机译:该工作报告了含有两个不同庞大侧链的随机芳族共聚酰胺的合成和评估。合成随机芳族共聚酰胺,将单体5-叔丁基二苯二甲酸和5-(9,20-二氢-9,10-乙酰基-11,12-二羧基咪唑-112-二羰基咪唑)间苯二甲酸与三种不同的二胺组合。随机芳族共聚酰胺易溶,具有0.47-0.60dLG(-1)的固有粘度。共聚酰胺致密膜是无定形的,具有良好的拉伸强度(56.2-57.5MPa)和拉伸模量(1.3-1.6GPa)。对共聚酰胺致密膜的渗透系数评估气体He,O-2,N-2,CH 4和CO 2。结果发现,与其相应的均聚酰胺相比,共聚酰胺的骨架中,两个庞大的侧基和叔丁基的组合提高了助气系数。 (c)2017 Wiley期刊,Inc.J.Phill。聚合物。 SCI。 2018,135,45884。

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