Copolymer Composition
<p>Copolymer Composition and Nanoparticle Configuration Enhance in vitro Drug Release Behavior of Poorly Water-soluble Progesterone for Oral Formulations</p>
... The cumulative drug release behavior of progesterone from all formulations in this work showed a biphasic pattern where phase I is described as burst release, and phase II sustained release (Figure 7). The burst release ...
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Synthesis, characterization and antimicrobial activity of novel acrylic materials
... the copolymer of N-Vinylpyrrolidone and 2, 4-Dichlorophenyl ...azeotropic composition of the ...The copolymer composition were determined by ultraviolet (UV) spectroscopy and molecular weight ...
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Antimicrobial graft copolymer gels
... ABSTRACT: In view of the growing worldwide rise in microbial resistance, there is considerable interest in designing new antimicrobial copolymers. The aim of the current study was to investigate the relationship between ...
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Characterization of Some Hydrogels Used in Water Purification: Correlation of Swelling and Free Volume Properties
... • The optimum preparation conditions such as the effect of copolymer composition and absorbed dose on gel fraction and swelling behaviours showed that the maximum swelling ratio for P DM[r] ...
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Mathematical modeling the effect of catalyst initial shape and the crack pattern in olefin copolymerization
... the copolymer composition, polymerization rate and average molecular weight ...average copolymer composition only in the early stage of polymerization, but the crack/pore patterns in the ...
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Studying Reactivity Relationships of Copolymers N-naphthylacrylamide with (Acrylicacid and Methylacrylate)
... copolymers composition is a critical factor in the assessment of its ...and copolymer composition, which is a specific significance in the copolymerization forms ...and copolymer synthesis, ...
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On Single Compartment Pharmacokinetic Model Systems that Obey Free Radical Copolymerization Kinetics and Multiplicity
... The copolymer composition vs the monomer concen- tration in a CSTR for SAN, styrene acrylonitrile and AMS-AN, alphamethyl styrene-acrylonitrile copolymers are shown in Figure 3 The copolymer ...
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Novel Acrylic Copolymers Derived from 4 Chloro 3,5 Dimethyl Phenol: Synthesis, Characterization and Antimicrobial Screening
... the copolymer composition, the reactivity ratios of CDMPMA and THFMA were determined by application of the Fineman-Ross (F-R) [24], Inverted Fineman-Ross (F-R), Kelen- Tudos (K-T) [25], and Extended ...
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Copolymerization of N tert butylacrylamide with Quinolinylacrylate:Synthesis, Characterization, Monomer reactivity ratios, Mean sequence length and Antimicrobial activity
... The QA peak area is used to determine the copolymer composition. Resonance signals at 7.0 -7.7 ppm corresponds to aromatic proton, and their integrated intensity of this peak was compared to the total ...
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Synthesis and Characterization of Certain Biodegradable Thermotropic Liquid Crystalline Random Copolyesters
... measurements, differential scanning calorimetry (DSC), thermogravimetry (TG) and X-ray diffraction (XRD) studies. The effect copolymer composition on the physical and thermal properties, as well as ...
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Journal of Polymer and Biopolymer Physics Chemistry
... Proton Nuclear Magnetic Resonance Spectroscopy and Fourier Tranform Infrared Spectroscopy have been frequently used for qualitative and quantitative analysis of organic compounds and polymers [1-9]. However, the ...
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Journal of Polymer and Biopolymer Physics Chemistry
... An example absorbance spectrum of the PVP-PVAc starting material is presented in Figure 2 and an example absorbance spectrum of PVP-PVOH product is presented in Figure 3. Plotted in Figure 4 are the data representing the ...
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Surface-Grafted Polymer and Copolymer Assemblies with Gradient in Molecular Weight and Composition
... orthogonal copolymer gradient could be formed from light emitting conjugated polymers directly on a transparent anode and the film could be annealed or treated with selective solvent to produce a change in ...
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Novel Acrylic copolymers based on Schiff base: Synthesis, characterization and antimicrobial activity
... The composition of MSB in homo and copolymer were obtained with the help of the above equation (6) and converted into the appropriate ...of copolymer composition, tacticity and sequence ...
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Synthesis of a hemin-containing copolymer as a novel immunostimulator that induces IFN-gamma production
... reports, we predicted that the binding of ligand molecules to each dimer of TLR9 might be necessary for TLR9 activation. The mechanism of TLR9 activation by hemozoin remains unclear. However, hemozoin consists of a heme ...
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Are block copolymer worms more effective Pickering emulsifiers than block copolymer spheres?
... individual copolymer chains, rather than ...block copolymer spheres and worms when employed as putative Pickering ...block copolymer worms described herein are much more readily accessible on a ...
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Are block copolymer worms more effective Pickering emulsifiers than block copolymer spheres?
... individual copolymer chains, rather than ...block copolymer spheres and worms when employed as putative Pickering ...block copolymer worms described herein are much more readily accessible on a ...
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Receptor-mediated gene delivery by folic acid-modified stearic acid-grafted chitosan micelles
... SKOV3 cells expressing folate receptors were used to determine whether gene delivery with FA-CS-SA is folate receptor-mediated. Transfection efficiencies of the FA- CS-SA/DNA and CS-SA/DNA complexes at different N/P ...
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Optimization of energy transfer in a polymer composite with perylene chromophores
... To show our goal visually, we calculated the idealized excitation-emission spectrum of the sensitizer-emitter copolymer. This is achieved by computing the matrix which is the outer prod- uct of two vectors: the ...
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Sensors Based on Molecularly Imprinted Polymers
... parameters. Efficacy of the template removing is the first parameters of course. Unfortunately, some organic solvents or conditions like high temperature cause degradation of MIP so keeping of the imprinted structure and ...
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