Chemical modification of cellulose acetate by N-(phenyl amino) maleimides: Characterization and properties

Abdel‐Naby, Abir S.; Al‐Ghamdi, Azza A.

doi:10.1016/j.ijbiomac.2014.04.007

Cited by 22 publications

(8 citation statements)

References 36 publications

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“…) implies the generation of four peaks located at 2 θ = 9.07, 10.30, 18.20, and 27.10°. The peak identified at 18.20° is assigned to the amorphous regions of the polymer, while the rest indicate the ordered structuration of the AC chains . Further aim of the XRD analysis was to evaluate the influence of GO incorporation within AC structure.…”

Section: Resultsmentioning

confidence: 99%

“…The peak identified at 18.20°is assigned to the amorphous regions of the polymer, while the rest indicate the ordered structuration of the AC chains. [18,27] Further aim of the XRD analysis was to evaluate the influence of GO incorporation within AC structure. The resultant diffractograms of the composite membranes are depicted in Fig.…”

Section: X-ray Diffraction Studiesmentioning

confidence: 99%

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Fabrication of cellulose triacetate/graphene oxide porous membrane

Ioniță

Crică

Voicu

et al. 2015

Polym. Adv. Technol.

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Cellulose triacetate (AC)/graphene oxide (GO) porous membranes were successfully fabricated by combining ultrasonication and phase inversion method. The structures and morphologies of the resultant composite membranes were investigated by X-ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy, respectively. Microscopic and X-ray diffraction measurements revealed that GO sheets were uniformly dispersed within the AC matrix. The pore size and structure were modulated by changing GO concentration from 0.25 to 1 wt%. Membrane thermal properties were also studied. Among all tested membranes, the most favorable GO amount was 1 wt%, giving Td 3% of 274°C, which represents a 22°C enhancement compared with AC. Conversely, the membranes showed improved barrier properties against water and ethanol. The decrease of both ethanol and water fluxes was assigned to the stabilization of composite membrane structure, as a result of GO progressive addition. Bovine serum albumin rejection assay indicated an increasing from 78% in the case of CA membrane to 99% in the case of CA/GO 1 wt% of the rejection degree after 90 min.

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Section: Resultsmentioning

confidence: 99%

Section: X-ray Diffraction Studiesmentioning

confidence: 99%

Fabrication of cellulose triacetate/graphene oxide porous membrane

Ioniță

Crică

Voicu

et al. 2015

Polym. Adv. Technol.

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“…are used to generate porosity (micro to dense size) within the polymeric matrix (material) [ 9 ]. Polymer composite membranes are prepared to enhance thermal, mechanical, electrical, magnetic and chemical integrity [ 6 , 10 ]. These membranes are categorized as: (a) polymer–polymer blending membranes, (b) particle-filled polymeric membranes, and (c) fiber-filled polymeric membranes.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Functionalized Nanokaolin Decorated MWCNTs on the Performance of Cellulose Acetate (CA) Membranes Spectacular

Afzal

Rafique

Iqbal³

et al. 2016

Nanomaterials

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In order to enhance salt rejection level and high pressure mechanical integrity, functionalized nanokaolin decorated multiwall carbon nanotubes (FNKM, 0–5 wt % loading) were incorporated into a cellulose acetate (CA) matrix using high temperature solution mixing methodology. Scanning electron microscopy (SEM), X-ray diffraction technique (XRD), thermo-gravimetric analyzer (TGA) and Fourier transform infrared spectrometer (FTIR) were used to characterize the prepared membranes. The obtained results revealed that with increasing FNKM concentration in the host polymeric matrix, composite membrane’s structural, functional, thermal, water permeation/flux and salt rejection characteristics were also modified accordingly. Percent enhancement in salt rejection was increased around threefold by adding 5 wt % FNKM in CA.

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“…These bands also appeared in the spectra of the modified films with a shift in that of the OH to lower frequencies (below 3485 cm −1 ). That indicated some interaction of the free OH groups with the end‐functional OH of HBC molecules, possibly by hydrogen bonding [52] . The films also show the bands of C−O−C asymmetric vibration of the CA around 1224 cm −1 .…”

Section: Resultsmentioning

confidence: 88%

Antifouling Performance of Cellulose Acetate Films Based on a New Benzoxazine Derivative

et al. 2021

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Fouling is an industrial problem that affects the maritime sector, and it has caused damages to equipment and vessels used in this industry. This research focuses on the synthesis of a novel arylidene‐based benzoxazine compound (HBC) and its use as a modifier for cellulose acetate (CA) matrix to form film samples and the investigation of their antifouling efficacy. The HBC compound was synthesized from a bis(arylidene)cyclopentanone diol compound and characterized appropriately using Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopic methods, respectively. Different weight ratios: 0, 10, 20, 30, and 40 %w/w of HBC to CA were mixed to give the films; CA‐0, CA‐10, CA‐20, CA‐30, and CA‐40, respectively. The fabricated films were characterized by FTIR analysis, and their morphology was examined by scanning electron microscopy (SEM). The thermal stability of the films was also studied using thermal gravimetric analysis (TGA), while the antifouling performance of the films was tested against strains of natural, biofilm‐forming bacteria isolated from artificial nets submerged in the Red Sea. Biofilm inhibitory test and bactericidal assay were conducted on the fabricated film materials using well established standard methods. The results of this investigation indicate that the HBC modified CA films contain relevant bioactive molecules that can inhibit primary colonizers in biofouling formation and will make a good antifouling coating film candidate. The CA‐40 revealed an inhibitory activity of 37 % and a bacterial killing efficacy of 87 %.

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Chemical modification of cellulose acetate by N-(phenyl amino) maleimides: Characterization and properties

Cited by 22 publications

References 36 publications

Fabrication of cellulose triacetate/graphene oxide porous membrane

Fabrication of cellulose triacetate/graphene oxide porous membrane

Synergistic Effect of Functionalized Nanokaolin Decorated MWCNTs on the Performance of Cellulose Acetate (CA) Membranes Spectacular

Antifouling Performance of Cellulose Acetate Films Based on a New Benzoxazine Derivative

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