Preparation and characterization of soluble polyimides

Qiu, Wulin; Li, Can; Zeng, Wenxiang; Liu, Jinsong; Lu, Lude; Wang, Xin

doi:10.1002/app.1995.070561011

Cited by 3 publications

(3 citation statements)

References 6 publications

(1 reference statement)

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“…The mechanical properties of composite materials are directly determined by the interface between CF and the resin 3,15–17 . However, the solutions to interfacial bonding are different, depending on the characteristics of the resin 18–21 .…”

Section: Introductionmentioning

confidence: 99%

Enhancement of interfacial properties of carbon fiber reinforced polyphenylene sulfide resin by sulfur treatment

Yang

Zhang

et al. 2023

J of Applied Polymer Sci

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The properties of carbon fiber (CF) reinforced thermoplastic resin composites depend on the physical and chemical interaction between the fibers and the resins. However, surface oxidation is not always necessary. In this study, the interaction between CF and Polyphenylene sulfide (PPS) is enhanced by using an emulsion of reactive sulfur to treat the CF surface. The interlaminar shear strength (ILSS) of CF/PPS composites is experimentally investigated and found to be up to 79.7 MPa, an increase of 36.1% compared to the untreated CF. The enhancement mechanism of the modification method established is inferred. Scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) results showed that sulfur etching on the surface of CF generated new functional groups, which improved the interfacial effect, and tightened the bond between CF and PPS. This indicates that sulfur treatment along with sizing must be a simpler method than surface oxidation to promote the interfacial bonding between CF and PPS.

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Section: Introductionmentioning

confidence: 99%

Enhancement of interfacial properties of carbon fiber reinforced polyphenylene sulfide resin by sulfur treatment

Yang

Zhang

et al. 2023

J of Applied Polymer Sci

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“…[2][3][4][5] In our earlier studies, we reported on the preparation and characterization of metal-containing polyureas 6 and bismaleimides 7 from divalent metal salts. We demonstrated that introducing metals into polyurea improved the thermal stability and the metal-containing bismaleimides had high thermooxidative stability and their temperatures of initial decomposition showed a relationship with metals introduced and imidization methods.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of metal-containing aromatic polyimides

Yang

Wang

Chen

et al. 2000

J. Appl. Polym. Sci.

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“…13 In the containing polymers. Some work about metal-conpresent work, a series of metal-containing bistaining polyimide [1][2][3] and polyurea, 4 in which new maleimides from divalent metal salts of p-aminoapproaches to metal-containing polymers were benzoic acid were prepared and characterized, first put forward, was carried out by us. Polymers and their thermal properties were also investifrom bismaleimides have been widely used due to gated.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of metal‐containing bismaleimides from divalent metal salts of p‐aminobenzoic acid

Qiu¹,

Yu²,

Yang³

et al. 1997

J. Appl. Polym. Sci.

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A series of novel metal-containing bismaleimides monomers BMI(M) (M Å Ca, Sr, Ba, Pb, Co, Ni) were prepared by reacting maleic anhydride with diaminodiphenyl carboxylate to form bismaleamic acid precursors, and subsequently by imidizing them chemically or thermally to form bismaleimides. The samples were characterized by IR, 1 H-NMR, and TG-DTA. The results of thermal analysis show that the BMI(M) have high thermo-oxidiative stability and their temperatures of initial decomposition have a relationship with metals introduced and the imidization methods.

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Preparation and characterization of soluble polyimides

Abstract: SYNOPSISTwo kinds of soluble polyimides from pyromellitic dianhydride with Congo red and 4-sulfanilamide were prepared, respectively. Their structures were characterized by IR and 'H-NMR, and the thermal properties were investigated by DSC and TG-DTA. 0 1995 John Wiley & Sons, Inc.

Cited by 3 publications

References 6 publications

Enhancement of interfacial properties of carbon fiber reinforced polyphenylene sulfide resin by sulfur treatment

Enhancement of interfacial properties of carbon fiber reinforced polyphenylene sulfide resin by sulfur treatment

Preparation and characterization of metal-containing aromatic polyimides

Preparation and characterization of metal‐containing bismaleimides from divalent metal salts of p‐aminobenzoic acid

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