نتایج جستجو برای: polyvinyl acetate

تعداد نتایج: 57720  

Journal: :Angewandte Chemie 2014
Calum Kinnear David Burnand Martin J D Clift Andreas F M Kilbinger Barbara Rothen-Rutishauser Alke Petri-Fink

The functionalization of gold nanorods (GNRs) with polymers is essential for both their colloidal stability and biocompatibility. However, a bilayer of the toxic cationic surfactant cetyl trimethylammonium bromide (CTAB) adsorbed on the nanorods complicates this process. Herein, we report on a strategy for the biocompatible functionalization of GNRs with a hydrophobic polymeric precursor, polyv...

Journal: :AJNR. American journal of neuroradiology 1997
S Park H Yoon D C Suh H Y Song

An arteriovenous malformation model with a transparent nidus was constructed to investigate the embolization behavior of polyvinyl acetate (PVAc) solution relative to flow velocity in the feeding artery and injection speed. It was found that the liquid embolic material flowed distally when injected too fast or when the flow velocity was too low. In addition, we found that solution consisting of...

Journal: :ACS applied materials & interfaces 2013
Umar Khan Peter May Harshit Porwal Khalid Nawaz Jonathan N Coleman

We have prepared composites of polyvinyl acetate (PVAc) reinforced with solution exfoliated graphene. We observe a 50% increase in stiffness and a 100% increase in tensile strength on addition of 0.1 vol % graphene compared to the pristine polymer. As PVAc is commonly used commercially as a glue, we have tested such composites as adhesives. The adhesive strength and toughness of the composites ...

2013
Mustafa ORDU Mustafa ALTINOK Huseyin PEKER

Black pine (Pinus nigra) has high industrial usage potential and large plantation in Turkey. Larch wood was treated with heat to determine its mechanical properties, such as bending strength and pressure and order to determine its adhesion strength. Laminating adhesives are used for the construction of polyvinyl acetate and polyurethane. Heat treatment was applied to the samples at 100-150°C fo...

2017

Submit Manuscript | http://medcraveonline.com Abbreviations: SLN: Solid Lipid Nanoparticles; PQ-SLNs: PQLoaded Solid Lipid Nanoparticles; o/w: Oil-in-Water; SA: Stearic Acid; PVA: Polyvinyl Alcohol; EtOAc: Ethyl Acetate; w/o: Waterin-Oil; PDI: Poly Dispersity Index; DLS: Dynamic Light Scattering; FD: Freeze Drying; HEPES: N-2-Hydroxyethylpiperazine-N-2Ethanesulfonic Acid; NP: Nanoformulated Pri...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2012
Maribel I Baker Steven P Walsh Zvi Schwartz Barbara D Boyan

Polyvinyl alcohol (PVA) is a synthetic polymer derived from polyvinyl acetate through partial or full hydroxylation. PVA is commonly used in medical devices due to its low protein adsorption characteristics, biocompatibility, high water solubility, and chemical resistance. Some of the most common medical uses of PVA are in soft contact lenses, eye drops, embolization particles, tissue adhesion ...

2009
Juchen Guo Kyu Yong Choi F. Joseph Schork

The copolymerizations of a gaseous monomer (ethylene) and a liquid monomer (vinyl acetate) via emulsion and miniemulsion polymerizations are reported. Reactions in which the vinyl acetate was introduced in both batch and semibatch modes are carried out. (Ethylene introduction is always in a semibatch model since the polymerization is carried out under a constant pressure of ethylene in the reac...

Journal: :international journal of nanoscience and nanotechnology 2013
maryam ranjbar mostafa yousefi robabeh nozari shabnam sheshmani

in this investigation, we report facile synthesis of cadmium(ii)-thioacetamide nanocomposites in the presence and absence of polyvinyl alcohol under ultrasonic irradiations, using cadmium acetate dihydrate (cd(ch3coo)2.2h2o), potassium iodide (ki), thioacetamide (taa, ch3csnh2), and polyvinyl alcohol (pva) as the starting materials. results show that in the presence of polyvinyl alcohol size...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2018

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