Bio-based semi-aromatic polyamide/functional clay nanocomposites: preparation and properties

Shabanian, Meisam; Kang, Nianjun; Liu, Jianwen; Wagenknecht, Udo; Heinrich, Gert; Wang, De‐Yi

doi:10.1039/c4ra02949f

Cited by 23 publications

(11 citation statements)

References 26 publications

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“…Considering the previously acquired success and the original theory of that larger void in the medium can substantially reduce the friction induced air resistance [10,30], the combination of 2D ultrathin nanonets and stable cavity structures can be an effective strategy to enhance the filtration performance for the filter materials. Bio-based polymer PA-56, as one kind of alternatives to petroleum-based polymers, is derived from renewable sources; and it exhibits broad prospects for various applications in the sustainable society, owing to their excellent performance related to high-temperature and chemical resistance, toughness and easy processability [31,32]. To date, considerable efforts have been devoted to the synthesis of polymer PA-56, however, nearly no effort has been given to the development of the PA-56 nanofibers, let alone the PA-56 NFN membranes with novel 2D nanonets and stable cavity structures for the airborne particle filtration.…”

Section: Introductionmentioning

confidence: 99%

Efficient and reusable polyamide-56 nanofiber/nets membrane with bimodal structures for air filtration

Liu

Zhang

Wang

et al. 2015

Journal of Colloid and Interface Science

171

134

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Section: Introductionmentioning

confidence: 99%

Efficient and reusable polyamide-56 nanofiber/nets membrane with bimodal structures for air filtration

Liu

Zhang

Wang

et al. 2015

Journal of Colloid and Interface Science

171

134

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“…The characteristic bands at 1640 and 1040 cm −1 are attributed to the C=O stretching vibration of the amide related to MBA and the S=O stretching related to AMPS, respectively. Furthermore, the spectrum of the hydrogel showed a broad coupling peak of N–H and O–H stretching at around 2500–3600 cm −1 …”

Section: Resultsmentioning

confidence: 99%

“…Another sharp degradation stage in the range 292–312 °C is related to the degradation of the amide side groups of the cross‐linker. The final stage at 418 °C was assigned to the thermal degradation of the polymer backbone of Hyd …”

Section: Resultsmentioning

confidence: 99%

The effect of organo‐modified silicate nanolayers on the oxygen and water vapor barrier properties of poly(lactic acid)

Hajibeygi

Shabanian

2018

J Chinese Chemical Soc

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For improving the oxygen and water vapor barrier properties of poly(lactic acid) (PLA), a new series of PLA-based nanocomposite films containing an organoclay (OC) and a hydrogel were prepared via the solvent casting method. The synthesized hydrogel was used in a PLA system combined with and without the reactive organo-modified clay. Montmorillonite and the protonated form of SABO ® STAB UV 94 were used to prepare the OC via an ion-exchange reaction. The modification of silicate layers was investigated by FTIR, XRD, and TGA techniques. The char residue of the OC obtained was 28% lower than that of the neat montmorillonite, which indicated the presence of SABO in the silicate layer structure. In the presence of the OC, the hydrogel showed a synergistic effect to enhance the barrier properties of PLA. The water vapor permeability decreased from 0.243 to 0.224 g/m 2 Á24 hr in PLA/hydrogel-OC nanocomposite containing 3 mass% each of the hydrogel and OC (PSH 6) compared to the neat PLA. Also, the oxygen permeability of PSH 6 was 37% lower than that of the neat PLA.

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“…Amino‐functionalized semiaromatic polyamides were prepared by Ritter et al via one‐step approach and enable the subsequent modification and cross‐linking . Wang et al synthesized bio‐based semiaromatic polyamide with pyridine and hydroxyl groups in the diamine unit . Its nanocomposites with clay showed superior mechanical properties, high flame retardancy, and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of novel semiaromatic copolyamides bearing both polar hydroxyl and unsaturated allyl substituents

Wang

Zhang

et al. 2016

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

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A series of novel semiaromatic (co)polyamides, poly(octylene terephthalamide)‐ran‐poly[octylene 2,5‐bis(allyloxy)terephthalamide] (APA8T‐x, x represents the molar fraction of allyloxy containing structure unit), were prepared via the interfacial polymerization of 1,8‐diaminooctane, terephthaloyl chloride, and 2,5‐bis(allyloxy)terephthaloyl chloride. The polymerization conditions were optimized in terms of the yields and the molecular weights of the resultant polymers. These polymers were converted to the target macromolecules, poly(octylene terephthalamide)‐ran‐poly[octylene (2,5‐dihydroxy‐3,6‐diallyl)terephthalamide] (CRPA8T‐x), through solid state Claisen rearrangement reaction, as characterized by 1H NMR and FT‐IR spectroscopies. While APA8T‐x was only soluble in very limited solvents, the solubility of CRPA8T‐x in polar solvents improved remarkably, especially for those with high counit content. Due to the polarity of hydroxyl group, CRPA8T‐x showed an improved hydrophilicity than APA8T‐x. The treatment of aramid fibers with CRPA8T‐x, as sizing agents, enhanced obviously their interfacial adhesion toward epoxy resin. The fibers sized with 0.5 wt% CRPA8T‐75 solution in the mixture of 1,1,2,2‐tetrachloroethane and phenol (40:60, w/w) exhibited a maximum increase of 60% in interfacial shear strength than the naked fibers. The easy preparation and the facility for the further modification through the dual functional substituents may greatly widen the application of semiaromatic polyamides. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 690–698

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Bio-based semi-aromatic polyamide/functional clay nanocomposites: preparation and properties

Cited by 23 publications

References 26 publications

Efficient and reusable polyamide-56 nanofiber/nets membrane with bimodal structures for air filtration

Efficient and reusable polyamide-56 nanofiber/nets membrane with bimodal structures for air filtration

The effect of organo‐modified silicate nanolayers on the oxygen and water vapor barrier properties of poly(lactic acid)

Synthesis and characterization of novel semiaromatic copolyamides bearing both polar hydroxyl and unsaturated allyl substituents

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