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Synthesis and Characterization of Amphiphilic Diblock Copolymer by Reverse Iodine Transfer Polymerization (RITP)

Reference 1. Laschewsky, A. Polymeric Surfactants. Tenside Surf. Det . 2003 , 40 , 246-249. 2. Cameron, N. S.; Corbierre, M. K.; Eisenberg A. Asymmetric amphiphilic block copolymers in solution: a morphological wonderland. Can. J. Chem. 1999 , 77 , 1311–1326. 3. Riess, G. Micellization of block copolymers. Prog. Polym. Sci. 2003 , 28 , 1107-1170. 4. Creutz, S.; Van Stam J.; De Schryver, F. C.; Jérôme R. Dynamics of Poly((dimethylamino)alkylmethacrylate-block-sodium methacrylate) Micelles. Influence of Hydrophobicity and

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Effects of processing parameters on the properties of amphiphilic block copolymer micelles prepared by supercritical carbon dioxide evaporation method

Chemotherapeutic Activity in The Mouse Glioblastoma Model. Med. Chem. Comm. 2, 270–273. DOI: 10.1039/c0md00235f. 6. Brannon-Peppas, L. & Blanchette, J.O. (2004). Nanoparticle and Targeted Systems for Cancer Therapy. Adv. Drug. Deliv. Rev. 64 , 206–212. DOI: 10.1016/j.addr.2012.09.033. 7. Torchilin, V.P. (2007). Micellar nanocarriers: Pharmaceutical Perspectives. Pharm. Res. 24, 1–16. DOI: 10.1007/s11095-006-9132-0. 8. Kataoka, K., Harada, A. & Nagasaki, Y. (2001). Block Copolymer Micelles for Drug Delivery: Design, Characterization and Biological

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Characterization and taste masking evaluation of microparticles with cetirizine dihydrochloride and methacrylate-based copolymer obtained by spray drying

modelbased methodology for spray-drying process development, J. Pharm. Innov. 4 (2009) 133-142; DOI: 10.1007/s12247-009-9064-4. 29. P. Sipos, R. Rajkó, K. Pintye-Hódi, I. Erős and P. Szabó-Révész, Formulation optimization of sustained- release ammonio methacrylate copolymer microspheres. Effects of Log P and concentration of polar cosolvents, and role of the drug/copolymer ratio, Pharmaceutics 3 (2011) 830-847; DOI: 10.3390/pharmaceutics3040830. 30. R. B. Mane, C. L. Bhingare and M. R. Bhalekar, Preparation and evaluation

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Synthesis and phosphorescent properties of the copolymers of N-vinylcarbazole, methyl methacrylate and iridium complex

Abstract

The copolymers containing carbazole unit and iridium complexes, such as (Ir(bpy)2Cl, Ir(mbpy)2Cl and Ir(Brbpy)2Cl, were synthesized via radical copolymerization of N-vinylcarbazole, methyl methacrylate and iridium complex. The synthesized copolymers were characterized by FT-IR, UV-Vis absorption spectroscopy and photoluminescence (PL) spectroscopy, respectively. According to the results, the copolymers (Ir(Brbpy)2Cl/PVK and Ir(mbpy)2Cl/PVK) exhibit yellow phosphorescence with an emission peak at around 553 nm under UV-visible light in the solid state. The results also reveal almost complete energy transfer from the host carbazole segments to the guest Ir complex in the copolymer film when the Ir content reaches 1.0 wt.%. The synthesized copolymers are good candidates as blue or yellow phosphorescent materials for PLED applications.

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New co-polymer zwitterionic matrices for sustained release of verapamil hydrochloride

and Structural Characterization of Polysulfobetaine Copolymers as Potential Materials for Medical Applications , in PPS-21: Proceedings of the 21st Annual Meeting of the Polymer Processing Society , Leipzig, June 19-23, 2005, Halle/S. 2005, p. 148. G. Georgiev, A. Tzoneva, L. Lyutov, S. Iliev, I. Kamenova, V. Georgieva, E. Kamenska and A. Bund, Electrostimulated shift of the precipitation temperature of aqueous polyzwitterionic solutions, Macromol. Symp. 210 (2004) 393-401; DOI: 10.1002/masy.200450644. G

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A comparison of two different methods for formation of the beta phase in nanocomposites based on vinylidene fluoride-hexafluoropropylene copolymer

Abstract

Nanocomposite materials based on vinylidene fluoride-hexafluoropropylene copolymer and organically modified montmorillonite Cloisite®15A were prepared by two different methods: melt mixing and co-precipitation. The changes taking place in crystalline structure, tensile strength, thermal behavior and the formation of piezoelectric b-phase as a result of the polymer system dissolution in dimethyl sulfoxide were studied. The technological specificity of each method has certain effect on the properties of the obtained nanocomposites. The highest content of b-phase — 95 % was achieved by co-precipitation from the solution of vinylidene fluoride-hexafluoropropylene copolymer in dimethyl sulfoxide and 6 mass % content of Cloisite®15A. Despite the common view that the use of solvents and prolonged technological procedure lead to overall higher expenses, the obtained nanocomposites could be promising for the preparation of new piezo-materials.

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Transparent fluorinate acrylic polyurethane with hydrophobicity obtained by crosslinking of hydroxyl-containing fluoroacrylate copolymer with HDI trimer

Abstract

Hydroxyl-containing fluoroacrylate copolymers with different fluorine and hydroxyl concentrations were synthesized via free-radical solution polymerization. Transparent fluorinated polyurethane (FPU) films were prepared by curing the copolymers with HDI (hexamethylene diisocyanate) trimer. The Fourier transform infrared spectroscopy (FT-IR) results revealed introduction of fluorine both into the copolymer and polyurethane. X-ray photoelectron spectroscopy (XPS) analyses indicated that a gradient concentration of fluorine existed in the depth profile of the fluorinated polyurethane films. The highest contact angle (CA) was obtained for the FPU film with fluoroacrylate monomer concentration of 22 wt.% because of fluorine present on the film surface. The surface topographies detected by SEM and AFM indicated that surface roughness contributed little to the film hydrophobicity. By increasing the fluoroacrylate monomer concentration, the decreasing of crosslinking degree of hard segment resulted in lowering the first degradation temperature, while more C-F groups in soft segment led to higher second degradation temperature. UV-Vis spectrophotometer measurements indicated that the FPU film with the fluoroacrylate monomer concentration of 16 wt.% still had a high transmittance of more than 90 % in the whole visible wavelength range.

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Mechanical and thermal properties of PP/PBT blends compatibilized with triblock thermoplastic elastomer

). Mechanical properties and permeability of polypropylene and poly(ethylene terephthalate) mixtures, Polym. Eng. Sci. 27, 622, DOI: 10.1002/pen.760270904. 5. Janik, J., Krolikowski, W. & Peczek, P., Polyester terephthalate and polyolefine blends- procedurę preparing, 06-12-27 PL348950. 6. El Fray, M. & Słonecki, J. (1999). Multiblock terephthalate copolymer as impact modifier for poly(propylene)/poly(butylene terephthalate) blends, Angew. Macrom. Chem. 266, 30–36. DOI: 10.1002/(SICI)1522-9505(19990501)266:1<30::AID-APMC30>3.0.CO;2-3. 7. He, Y., Zhu, B

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Electrochemical behavior and conductivity measurements of electropolymerized selenophene-based copolymers

), 190. [38] YOSHINO K., KOHNO Y., SHIRAISHI T., KANETO K., INOUE S., TSUKAGOSHI K., Synthetic Met., 10 (1985), 319. [39] HUANG W.S., PARK J.M., Chem. Commun., (1987), 856. [40] ZOTTI G., GUMBS R., Polythiophene and Polypyrrole Copolymers, in NALWA H.S. (Ed), Handbook of Organic Conductive Molecules and Polymers, Wiley, Chichester, 1997. [41] ALAKHRAS F., HOLZE R., J. Appl. Polym. Sci., 107 (2008), 1133. [42] ALAKHRAS F., HOLZE R., Electrochim. Acta, 52 (2007), 5896. [43

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Sedimentation of water dispersed systems of acrylate copolymers in xylene

stability of the water emulsions of acrylate-methacrylate resin. Progress in Organic Coatings. 31, 217-222. Makarewicz, E. & Zalewska, A. (2005). The analysis of phenomena and factors having an effect on the sedimentation stability and rheology of water-based dispersions of MMA/BA/Maa copolymer in xylene. Progress in Organic Coatings. 54, 43-54. Izmailova, V.N., Yampolskaya, G.P. (1998). Concentrated emulsions stabilized by macromolecules and the contributions of Hans Sonntag to this scientific field. Colloids and

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