نتایج جستجو برای: polyvinyl alcohol

تعداد نتایج: 121649  

Journal: :Materials advances 2023

Octyl enamine-grafted acetoacetylated polyvinyl alcohol film (AAPVA x –OA) with a “soft-core–hard-sheath” layered structure was prepared through simple soaking. The shows excellent mechanical property and good programmable shape deformation.

2008
K. B. Tarmyshov F. Müller-Plathe Konstantin B. Tarmyshov Florian Müller-Plathe

c © 2008 by John von Neumann Institute for Computing Permission to make digital or hard copies of portions of this work for personal or classroom use is granted provided that the copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise requires prior specific permission by the publisher ment...

Journal: :Chemical communications 2010
Hua Bai Chun Li Xiaolin Wang Gaoquan Shi

Graphene oxide/poly(vinyl alcohol) (GO/PVA) composite hydrogel was prepared and utilized for selective drug release at physiological pH.

2018
Andreas A. Sapalidis Fotios K. Katsaros Nick K. Kanellopoulos

Journal: :journal of ultrafine grained and nanostructured materials 2015
sedigheh rashidi abolghasem ataie

in this research, the effect of different biopolymers such as polyethylene glycol (peg) and polyvinylalcohol (pva) on synthesis and characterization of polymer/cobalt ferrite (cf) nano-composites bymechanical alloying method has been systematically investigated. the structural, morphological andmagnetic properties changes during mechanical milling were investigated by x-ray diffraction (xrd),fo...

Asit Baran Mandal Celladurai Senthil Kumar Devendiran Raja Govindaraj Rangaraj Kishore Narra Pully Neelakanta Reddy Unnikrishnan Dhanalekshmi

The present work investigated the preparation of biodegradable beads with alginate polymer by ionotropic gelation method to improve the control release properties of the antibiotic rifampicin. Ionotropic gelation method was applied to prepare beads using calcium chloride (CaCl2) as cationic component and alginate as an anionic component. In this method, adding 0.5% w/v polyvinyl alcohol (PVA) t...

Journal: :journal of membrane science and research 0
sandhya pal maulana azad national institute of technology bhopal (madhya pradesh) 462003, india savita dixit maulana azad national institute of technology bhopal (madhya pradesh) 462003, india sunder lal maulana azad national institute of technology bhopal (madhya pradesh) 462003, india

the reported work is on the preparation and characterization of polyvinyl alcohol -g- polyacrylic acid (pva-g-paa)/ polybenzimidazole sulfone (pbis) cation exchange membrane used for the electro dialysis of sodium chloride solution. the polymer syrup has been prepared using the grafting method with the help of polyvinyl alcohol and polyacrylic acid in the presence of water solvent. the polymer ...

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