Intrinsically colored wholly aromatic polyamides (aramids)

Trigo‐López, Miriam; Miguel-Ortega, Álvaro; Vallejos, Saúl; Muñoz, Asunción; Izquierdo, Daniel; Colina, Álvaro; García, Félix C.; García, José Miguel

doi:10.1016/j.dyepig.2015.06.027

Cited by 30 publications

(13 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The thermal stabilities of the aramids were investigated with TGA. The aramids have excellent thermal stabilities, better than that of PMIA having a T d ,5% value of around 430 °C . The T d ,5% values are higher than 460 °C both in N 2 and in air for all of the aramids obtained.…”

Section: Resultsmentioning

confidence: 76%

“…The introduction of 26N‐COCl and ODA improves the mechanical strength of the aramids, which in general do not have tensile strength and tensile modulus higher than 100 MPa and 2.2 GPa, respectively . The mechanical strength of the aramids is higher than that of the reference PMIA, which has a tensile strength and tensile modulus of 63 MPa and 1.4 GPa, respectively . The rod‐like fiber was also used for tensile test, and the tensile strength, tensile modulus, and elongation at break are 114 MPa, 3.24 GPa, and 24%, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…A silk‐like fiber was obtained via wet spinning of a 15 wt % solution to water. The film preparation was modified according to literatures . The film was prepared via casting from a 10 wt % homogenous solution of the polymer to the glass plate or a Teflon mold, placed at ambient temperature for evaporation of the solvent.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Facile preparation and characterization of soluble aramid

Zhou¹,

Wang

Zhang³

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

It remains a problem to prepare cost-effective aramid with good solubility via a simple method since the commercialization of aromatic polyamides such as Kevlar and Nomex by DuPont in 1960s. Herein, we report the facile preparation and properties of an aromatic polyamide copolymerized by 2,6-naphthalene dichloride (26N-COCl), 4,4 0 -oxydianiline, and m-phenylenediamine. The synthetic route is very facile and cost-effective. The modified aramids possess excellent comprehensive properties. The polymers are soluble in some organics. Their thermal stabilities are excellent, with 5% weight loss temperatures (T d,5% 's) in air higher than 460 8C and glass transition temperatures (T g 's) higher than 280 8C. These polymers are easily processed into films, fibers, and tubes. The products exhibit high strength. For example, the films have excellent mechanical strength, with a tensile strength up to 139 MPa, a tensile modulus up to 3.45 GPa, and an elongation of 11%. The films are also transparent and fluorescent. The overall properties are better than those of the commercial Nomex. The facilely prepared aramids with good solubility are very promising for commercial use.

show abstract

Section: Resultsmentioning

confidence: 76%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Facile preparation and characterization of soluble aramid

Zhou¹,

Wang

Zhang³

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Section: Inherent Colorationmentioning

confidence: 99%

“…In this regard, Trigo-López et al [133] prepared three high-performance wholly aromatic polyamides, (Scheme 23, P45), by copolymerization of different proportions of a blue diamine monomer based on a chromogenic azadipyrromethene core, with m-phenyleneisophtahlamide and isophthaloyl chloride. The coloration efficiency of the chromogenic monomer is very high, and the color hue can be tuned by means of increasing or decreasing the percentage of structural units containing the dye motifs.…”

Section: Inherent Colorationmentioning

confidence: 99%

Functional Aromatic Polyamides

et al. 2017

Self Cite

View full text Add to dashboard Cite

Abstract:We describe herein the state of the art following the last 8 years of research into aromatic polyamides, wholly aromatic polyamides or aramids. These polymers belong to the family of high performance materials because of their exceptional thermal and mechanical behavior. Commercially, they have been transformed into fibers mainly for production of advanced composites, paper, and cut and fire protective garments. Huge research efforts have been carried out to take advantage of the mentioned characteristics in advanced fields related to transport applications, optically active materials, electroactive materials, smart materials, or materials with even better mechanical and thermal behavior.

show abstract

Aromatic Polyamides

Trigo‐López

García

Ruiz

et al. 2018

Encyclopedia of Polymer Science and Technology

View full text Add to dashboard Cite

This article presents the preparation and properties of aromatic polyamides as well as the fibers and films made from these polymers. Particular focus is placed on the polymers that have achieved commercial status, namely, poly( m ‐phenylene isophthalamide), poly( p ‐phenylene terephthalamide), and copoly( p ‐phenylene/3,4′‐diphenyl ether terephthalamide). The production processes of the corresponding monomers for these three polymers are described in detail, analyzing both laboratory and commercial‐scale processes for the preparation of the polymers in the form of fibers and films. A brief review of new developments in the synthesis and applications of functional aromatic polyamides is also given, analyzing new applications in which polyamides are being employed, such as electronics, sensors, and biomaterials. Finally, a brief analysis of the economic impact of the polyamide market is described, including also environmental aspects.

show abstract

Intrinsically colored wholly aromatic polyamides (aramids)

Cited by 30 publications

References 10 publications

Facile preparation and characterization of soluble aramid

Facile preparation and characterization of soluble aramid

Functional Aromatic Polyamides

Aromatic Polyamides

Contact Info

Product

Resources

About