Progress in designing poly(amide imide)s (PAI) in terms of chemical structure, preparation methods and processability

Dodda, Jagan Mohan; Bělský, Petr

doi:10.1016/j.eurpolymj.2016.09.043

Cited by 35 publications

(23 citation statements)

References 135 publications

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“…Aromatic poly(amide-imide)s (PAIs) possess desirable characteristics between polyamides (PAs) and polyimides (PIs) such as high thermal stability and good mechanical properties as well as better processability [25][26][27][28][29][30][31]. To the best of our knowledge, there has been no report on this unique surface by solventcasting of PAI in a solvent mixture, with rough surfaces forming spontaneously on the substrates.…”

Section: Introductionmentioning

confidence: 99%

Facile preparation of multifunctional poly(amide‐imide)/polyaniline films: Combining self‐cleaning, self‐extinguishing, and conductive

Wang

et al. 2018

Polymer Engineering & Sci

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Recently, multifunctional films are of particular interest to scientists owing to their diversified properties. Here, we demonstrated that self‐cleaning, self‐extinguishing, and high conductive films were fabricated by simple solvent‐casting method from poly(amide‐imide)/polyaniline composites. The multifunctional films exhibited controllable water contact angles varying from 65° to 120° and high electrical conductivities of over 40 S m−1. Moreover, due to the improved hydrophobicity, the multifunctional films showed self‐cleaning characteristics and were used to collect the dust powders easily and perfectly during the dispensed water droplet rolling off the solid surface. Furthermore, the self‐extinguishing property of the multifunctional films was confirmed by thermogravimetric analysis. The special film composition and morphology are the two important aspects that induce such unusual properties. The polyaniline content can strongly influence the morphology of the composite films, which in turn display different hydrophobicities and conductivities. POLYM. ENG. SCI., 59:E33–E43, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Facile preparation of multifunctional poly(amide‐imide)/polyaniline films: Combining self‐cleaning, self‐extinguishing, and conductive

Wang

et al. 2018

Polymer Engineering & Sci

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“…Taking into consideration the TGA and DSC diagrams of the compounds SKL-LA ( Figure 8b) and SKL-PLA (Figure 8c), it may be remarked that both compounds present an initial peak of thermal degradation at 280 • C, whereas their thermal degradation end temperature is located at 800 • C leaving a residue of approximately 22% and 35% mass, respectively ( Table 5). The residual mass is attributed to the autocatalytic stabilization effect of lignin derived by high elemental composition in oxygen [29][30][31][32]. The PLCl is degraded almost quantitatively at 400 • C (Figure 8a).…”

Section: Thermogravimetric Analysis and Differential Scanning Calorimmentioning

confidence: 99%

Synthesis and Processing of Melt Spun Materials from Esterified Lignin with Lactic Acid

et al. 2019

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In this study, the carbon fiber manufacturing process is investigated, using high-density polyethylene (HDPE) and esterified lignin either with lactic acid (LA) or with poly(lactic acid) (PLA) as precursors. More specifically, lignin was modified using either LA or PLA in order to increase its chemical affinity with HDPE. The modified compounds were continuously melt spun to fibrous materials by blending with HDPE in order to fabricate a carbon fiber precursor. The obtained products were characterized with respect to their morphology, as well as their structure and chemical composition. Moreover, an assessment of both physical and structural transformations after modification of lignin with LA and PLA was performed in order to evaluate the spinning ability of the composite fibers, as well as the thermal processing to carbon fibers. This bottom–up approach seems to be able to provide a viable route considering large scale production in order to transform lignin in value-added product. Tensile tests revealed that the chemical lignin modification allowed an enhancement in its spinning ability due to its compatibility improvement with the commercial low-cost and thermoplastic HDPE polymer. Finally, stabilization and carbonization thermal processing was performed in order to obtain carbon fibers.

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“…Therefore, more and more biodegradable polymers are starting to become a concern for people, especially a polymer that could control the rate of degradation [5,6]. Amino acid-based polyamide-imides (PAIs) are a type of high-performance (HP) materials that combine the thermal resistance and mechanical properties of polyimides, and the easy machinability of PA [7,8], as well as having improved degradation properties [9] and cell compatibility [10]. This is due to the introduction of natural chiral sections, which is obviously of great significance for the development of HP, high-processability, and biodegradable polymer materials.…”

Section: Introductionmentioning

confidence: 99%

Study on the Thermal Properties and Enzymatic Degradability of Chiral Polyamide-Imides Films Based on Amino Acids

Liu

Yang

et al. 2019

Applied Sciences

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Six kinds of chiral polyamide-imides (PAI3a-3f) have successfully been synthesized via direct polycondensation. The thermal properties of the materials were evaluated by the gravimetric analysis (TGA) and differential scanning calorimetry (DSC). A thermal test was conducted and showed that the polymers have good thermal stability. The Tg values were affected by the volume effect of the side groups, the internal plasticizing effect and the isolation effect. Polyamide-imides (PAIs) with L configuration showed higher Tg values than PAIs with D configuration. In the enzymatic degradation experiments of PAI films, the results showed that the structure of amino acids have the greatest influence on the degradation performance of PAIs relative to chirality. The PAI films with simple side groups and L configurations were easier to degrade. The degradation rate of natural chiral PAIs were higher than those of non-natural chiral PAIs. This makes it possible to develop polymer materials with specific degradation rates.

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Progress in designing poly(amide imide)s (PAI) in terms of chemical structure, preparation methods and processability

Cited by 35 publications

References 135 publications

Facile preparation of multifunctional poly(amide‐imide)/polyaniline films: Combining self‐cleaning, self‐extinguishing, and conductive

Facile preparation of multifunctional poly(amide‐imide)/polyaniline films: Combining self‐cleaning, self‐extinguishing, and conductive

Synthesis and Processing of Melt Spun Materials from Esterified Lignin with Lactic Acid

Study on the Thermal Properties and Enzymatic Degradability of Chiral Polyamide-Imides Films Based on Amino Acids

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