Highly porous starch/poly(ethylene-alt -maleic anhydride) composite nanofiber mesh

2013 ◽  
Vol 34 (8) ◽  
pp. 1321-1324 ◽  
Author(s):  
Burcu Oktay ◽  
Emre Baştürk ◽  
Nilhan Kayaman-Apohan ◽  
Memet Vezir Kahraman
Keyword(s):  
Maleic Anhydride ◽  
Composite Nanofiber ◽  
Poly Ethylene ◽  
Highly Porous ◽  
Nanofiber Mesh

scholarly journals Zeolite Composite Nanofiber Mesh for Indoxyl Sulfate Adsorption toward Wearable Blood Purification Devices

Fibers ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 37
Author(s):  
Makoto Sasaki ◽  
Yihua Liu ◽  
Mitsuhiro Ebara
Keyword(s):  
Chronic Kidney Disease ◽  
Adsorption Capacity ◽  
Blood Purification ◽  
Indoxyl Sulfate ◽  
Powder Form ◽  
Sulfate Adsorption ◽  
Composite Nanofiber ◽  
Poly Ethylene ◽  
Zeolite Composite ◽  
Nanofiber Mesh

A nanofiber mesh was prepared for the adsorption of indoxyl sulfate (IS), a toxin associated with chronic kidney disease. Removing IS is highly demanded for efficient blood purification. The objective of this study is to develop a zeolite composite nanofiber mesh to remove IS efficiently. Eight zeolites with different properties were used for IS adsorption, where a zeolite with a pore size of 7 Å, H+ cations, and a silica to aluminum ratio of 240 mol/mol exhibited the highest adsorption capacity. This was primarily attributed to its suitable silica to aluminum ratio. The zeolites were incorporated in biocompatible poly (ethylene-co-vinyl alcohol) (EVOH) nanofibers, and a zeolite composite nanofiber mesh was successfully fabricated via electrospinning. The nanofiber mesh exhibited an IS adsorption capacity of 107 μg/g, while the adsorption capacity by zeolite increased from 208 μg/g in powder form to 386 μg/g when dispersed in the mesh. This also led to an increase in cell viability from 86% to 96%. These results demonstrated that this zeolite composite nanofiber mesh can be safely and effectively applied in wearable blood purification devices.

Surface grafting of octylamine onto poly(ethylene-alt-maleic anhydride) gate insulators for low-voltage DNTT thin-film transistors

2016 ◽  
Vol 18 (12) ◽  
pp. 8522-8528 ◽  
Author(s):  
Yun-Seo Choe ◽  
Mi Hye Yi ◽  
Ji-Heung Kim ◽  
Yun Ho Kim ◽  
Kwang-Suk Jang
Keyword(s):  
Thin Film ◽  
Maleic Anhydride ◽  
Thin Film Transistors ◽  
Low Voltage ◽  
Gate Insulator ◽  
Surface Grafting ◽  
Gate Insulators ◽  
Poly Ethylene

We report the surface grafting of octylamine onto a poly(ethylene-alt-maleic anhydride) (PEMA) gate insulator for enhancing the performance of dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT) thin-film transistors.

The Effect of Compatibilising Agent and Surface Modification on the Physical Properties of Short Pineapple Leaf Fibre (Palf) Reinforced High Impact Polystyrene (Hips) Composites

2009 ◽  
Vol 17 (6) ◽  
pp. 379-384 ◽  
Author(s):  
J.P. Siregar ◽  
S. M. Sapuan ◽  
M.Z.A. Rahman ◽  
H.M.D.K. Zaman
Keyword(s):  
Surface Modification ◽  
Maleic Anhydride ◽  
Physical Properties ◽  
Alkali Treatment ◽  
Fibre Surface ◽  
Natural Fibre ◽  
High Impact ◽  
High Impact Polystyrene ◽  
Poly Ethylene

The aim of this study was to investigate the effects of compatibilising agent and surface modification of short pineapple leaf fibre on physical properties of short pineapple leaf fibre reinforced high impact polystyrene (HIPS) composites. The purpose of using the compatibilising agents in this study was to modify the HIPS which include the polystyrene-block-poly(ethylene-ran-butylene)-block-poly(styrene-graft-maleic anhydride) and poly(styrene-co-maleic anhydride). Meanwhile, the alkali treatment was also used to modify the natural fibre surface of short PALF. The results have shown that adding compatibilising agent has improved the physical properties of the composites more effectively than by only using alkali treatment to modify the natural fibre surface.

Preparation and Properties of Polycarboxylate Superplasticizer with Hydroxy Terminated Side Chains

2012 ◽  
Vol 455-456 ◽  
pp. 600-605
Author(s):  
Sheng Hua Lv ◽  
Jian Ping Duan ◽  
Fang Li
Keyword(s):  
Maleic Anhydride ◽  
Ethylene Oxide ◽  
Ammonium Persulfate ◽  
Molar Ratio ◽  
Side Chains ◽  
Polycarboxylate Superplasticizer ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Maleic anhydride modified polycarboxylates superplasticizes (MPC) was synthesized from allylic poly (ethylene oxide ether) (APEG), maleic anhydride (MAH), sodium methylallyl sulfonate (SMAS) using ammonium persulfate (APS) as initiator. The optimal MPC with best fluidity was got at 90 °C when molar ratio of MAH, APEG, SAMA was 2.75∶1∶0.4 in the present of 4.5 mol% APS of all the monomer molars. MPC which possessed hydroxyl terminated side chains shows some difference in fluidity retarding related to the conventional superplasticizers possessed methoxy terminated side chains.

In the melt, grafting of polycarbonate onto polystyrene-block -poly(ethylene-butylene)-block -polystyrene-grafted -maleic anhydride: Reactive extrusion

2013 ◽  
Vol 54 (11) ◽  
pp. 2660-2668
Author(s):  
Celine Chevallier ◽  
Frederic Becquart ◽  
Cyril Benoit ◽  
Jean-Charles Majeste ◽  
Mohamed Taha
Keyword(s):  
Maleic Anhydride ◽  
Reactive Extrusion ◽  
Melt Grafting ◽  
Poly Ethylene
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