Preparation and properties of fibers containing mixed polymers. I. Polyacrylonitrile-cellulose acetate fibers

Cates, David M.; White, H.J. Osborne

doi:10.1002/pol.1956.120200114

Cited by 8 publications

(4 citation statements)

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“…The study of diffusion, sorption, and permeation in polymer blend structures provides a valuable means for additional characterization of polymer blends. The diffusion behaviour in polymer blends was first reported by Cates and White [9][10][11] who investigated the water sorption characteristics of polyacrylonitrile (PAN)/cellulose, PAN/silk, and PAN/cellulose acetate blends. The diffusion behaviour of polyethylene-polystyrene (PE-PS) semi-interpenetrating polymer networks (IPNs) in toluene and chloroform was investigated by Hong and Duda [12].…”

Section: Introductionmentioning

confidence: 95%

Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Igwe

Ezeani

2012

International Journal of Polymer Science

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The transport of three aromatic solvents (benzene, toluene and xylene) through snail shell powder filled natural rubber was studied at 313, 333, and 353 K by conventional weight-gain experiments. The effects of snail shell powder content, particle size, nature of solvent, and temperature on the transport characteristics of natural rubber were determined. The estimated Arrhenius activation energies for the processes of sorption, diffusion, and permeation showed that the activation energies were highest in xylene at all the filler contents investigated. The calculated enthalpies, and entropies of sorption were all positive for the solvents investigated. Similarly, the change in the estimated free energies of sorption were all positive; an indication of the non-spontaneity of the solubility of snail shell powder filled natural rubber in the aromatic solvents at 313 k.

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Section: Introductionmentioning

confidence: 95%

Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Igwe

Ezeani

2012

International Journal of Polymer Science

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“…Nature and type of polymers are very important factors affecting diffusion. Cates and White [19][20][21] reported water's sorption behaviour in blends of polyacrylonitrile-cellulose, silk, and cellulose acetate. The sorption of water in PAN-cellulose acetate and PAN-cellulose found to vary linearly with blend composition.…”

Section: Introductionmentioning

confidence: 99%

Water absorption behaviour for IIR/EPDM loaded with carbon black

El-Nashar

Soleiman

Yehia

et al. 2021

Plastics, Rubber and Composites

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This study investigates and quantifies the water absorption behaviour of hydrophobic carbon black in the 75IIR/25EPDM blend by keeping 5 × 2.5 × 0.2 cm samples in distilled water over three months. We utilise HAF (N-326) at concentrations of 50, 60, and 70 phr as filler for 75IIR/25EPDM blend. Samples are masticated carefully and then molded under a hot hydraulic press. The effect of water absorption by un-filled and filled samples is described using two fitting models: the logistic and the two-exponential growth models. The results show the water absorption has non-Fickian behaviour for all samples, and water uptake increases continuously. The rate of the uptake is found to be minimum for the sample with HAF-concentration of 60 phr.

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“…Thus, many attempts have been made to improve their properties. [1][2][3][4][5][6][7][8] It has been reported in our laboratory that acrylic polymer-SF could form useful blend fibers, which would combine the merits of the two fibers and enlarge the range of their applications. 9,10 However, due to the incompatibility of these two polymers, the mechanical properties of the fibers would be deteriorated upon blending.…”

Section: Introductionmentioning

confidence: 99%

Compatibilization of acrylic polymer-silk fibroin blend fibers: 2. Morphology and mechanical properties of the compatilized blend fibers

Sun

Shao

Zhou

et al. 1999

J. Appl. Polym. Sci.

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Three synthesized acrylonitrile-graft-silk fibroin copolymers (AN-g-SF), denoted as COP-65, COP-87, and COP-106, were used as potential compatilizers for acrylic polymer-silk fibroin blend fibers. Due to their different molecular weights and architecture, the compatibilizing efficiency is in the order of COP-106 Ͼ COP-65 Ͼ COP-87. To maintain the "sheath-core" structure of the blend fiber, COP-65 was chosen as the compatilizer. It was found that the addition of a small amount of COP-65 (up to 2 wt %) results in finer and more even distribution of the SF fibrils. On the contrary, excess COP-65 will cause flocculation and coalescence of the SF phase. Similarly, mechanical properties are enhanced with an optimum amount of the compatilizers. However, when excess COP-65 is added, the mechanical properties of the blend fibers are even worse than that of the uncompatilized samples. The mechanism of these findings is also discussed.

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Preparation and properties of fibers containing mixed polymers. I. Polyacrylonitrile-cellulose acetate fibers

Cited by 8 publications

References 0 publications

Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Water absorption behaviour for IIR/EPDM loaded with carbon black

Compatibilization of acrylic polymer-silk fibroin blend fibers: 2. Morphology and mechanical properties of the compatilized blend fibers

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