نتایج جستجو برای: blend membranes

تعداد نتایج: 105565  

Journal: :Journal of Polymer Research 2021

Abstract Carbon dioxide (CO 2 ) emissions have been the root cause for anthropogenic climate change. Decarbonisation strategies, particularly carbon capture and storage (CCS) are crucial mitigating risk of global warming. Among all current CO separation technologies, membrane has biggest potential CCS as it is inexpensive, highly efficient, simple to operate. Polymeric membranes preferred choic...

Journal: :Acta biomaterialia 2013
Nazely Diban Suvi Haimi Lydia Bolhuis-Versteeg Sandra Teixeira Susanna Miettinen André Poot Dirk Grijpma Dimitrios Stamatialis

At present the manufacture of small-diameter blood vessels is one of the main challenges in the field of vascular tissue engineering. Currently available vascular grafts rapidly fail due to development of intimal hyperplasia and thrombus formation. Poly(lactic-co-glycolic acid) (PLGA) hollow fiber (HF) membranes have previously been proposed for this application, but as we show in the present w...

Journal: :Carbohydrate polymers 2013
S S Silva S G Caridade J F Mano R L Reis

The positive interaction between polysaccharides with active phytochemicals found in medicinal plants may represent a strategy to create active wound dressing materials useful for skin repair. In the present work, blended membranes composed of chitosan (Cht) and aloe vera gel were prepared through the solvent casting, and were crosslinked with genipin to improve their properties. Topography, sw...

2010
N. Nambi Krishnan Hye-Jin Lee Hyoung-Juhn Kim Ju-Yong Kim Inchul Hwang Jong Hyun Jang Eun Ae Cho Soo-Kil Kim Dirk Henkensmeier Seong-Ahn Hong Tae-Hoon Lim

0014-3057/$ see front matter 2010 Published b doi:10.1016/j.eurpolymj.2010.03.005 * Corresponding author. Tel.: +82 2 958 5299; fax E-mail address: [email protected] (H.-J. Kim). Polymer blending is used to modify or improve the dimensional and thermal stability of any two different polymers or copolymers. In this study, both sulfonated polybenzimidazole homopolymer (MS-p-PBI 100) and sulfonat...

Journal: :Iraqi journal of science 2021

In this work proton exchange membranes were prepared by a modified microwave casting solution technique, using the polymers blend (polyethersulfone (PES), polystyrene (PS), polyvinylidenefluride (PVDF)). Modified method was used to overcome poor compatibility between hydrophilic, (PES, PS) and hydrophobic PVDF, cooling substrate during film process (4.5-5.5oC). Membranes chemically three reacti...

2004
Zhaoan Chen Maicun Deng Yong Chen Gaohong He Ming Wu Junde Wang

A modified microfiltration membrane has been prepared by blending a matrix polymer with a functional polymer. Cellulose acetate (CA) was blended with polyethyleneimine (PEI), which was then crosslinked by polyisocyanate, in a mixture of solvents. In the membrane, PEI can supply coupling sites for ligands in affinity separation or be used as ligands for metal chelating, removal of endotoxin or i...

2011
Bhuvanesh Gupta Shalini Saxena Abha Arora Mohammad Sarwar Alam

Membranes have been developed by coating a blend of chitosan (CS) and polyethylene glycol (PEG) of different molecular weights (4000, 10,000 and 20,000) on cotton fabric followed by freeze drying. The influence of PEG molecular weight on the physical characteristics of the membranes has been investigated. The scanning electron microscopy of the coated fabric reveals porous structure. The porosi...

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