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4,042 Newest Publications about the topic polystyrene

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Sensors, Vol. 18, Pages 1953: Polystyrene Oxygen Optodes Doped with Ir(III) and Pd(II) meso-Tetrakis(pentafluorophenyl)porphyrin Using an LED-Based High-Sensitivity Phosphorimeter

15-Jun-2018 | Filho, Alexandre F. De Moraes; Gewehr, Pedro M.; Maia, Joaquim M.; Jakubiak, Douglas R., Sensors, 2018

Sensors, Vol. 18, Pages 1953: Polystyrene Oxygen Optodes Doped with Ir(III) and Pd(II) meso-Tetrakis(pentafluorophenyl)porphyrin Using an LED-Based High-Sensitivity Phosphorimeter Sensors doi: 10.3390/s18061953 Authors: Alexandre Filho Pedro Gewehr Joaquim Maia Douglas ...

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Effect of UV radiation damage in air on polymer film thickness, studied by soft X-ray spectromicroscopy

12-Jun-2018 | Lis G. A. Melo; Adam P. Hitchcock; Darija Susac; Juergen Stumper; Viatcheslav Berejnov, Physical Chemistry Chemical Physics, 2018

The thicknesses of thin films of polystyrene (PS), poly(methyl methacrylate) (PMMA), and perfluorosulfonic acid (PFSA) were measured by Ultraviolet Spectral Reflectance (UV-SR) and Scanning Transmission X-ray Microscopy (STXM). At high doses, the UV irradiation in air used in the UV-SR method was ...

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Materials, Vol. 11, Pages 997: Preparation and Properties of C/C Hollow Spheres and the Energy Absorption Capacity of the Corresponding Aluminum Syntactic Foams

12-Jun-2018 | Yu, Qiyong ; Zhao, Yan ; Dong, Anqi ; Li, Ye, Materials, 2018

Materials, Vol. 11, Pages 997: Preparation and Properties of C/C Hollow Spheres and the Energy Absorption Capacity of the Corresponding Aluminum Syntactic Foams Materials doi: 10.3390/ma11060997 Authors: Qiyong Yu Yan Zhao Anqi Dong Ye Li The present study focuses on the ...

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Polystyrene supported [PdCl-(SeCSe)] complex: A novel, reusable and robust heterogeneous catalyst for the Sonogashira synthesis of 1,2-disubstituted alkynes and 1,3-enynes

05-Jun-2018 | Barahman Movassagh; Elmira Mohammadi, New Journal of Chemistry, 2018

3,5-Bis((phenylselanyl)methyl)phenol has been synthesized as a novel SeCSe pincer type pre-ligand from commercially available 5-hydroxy isophthalic acid through a multistep synthesis. Then, polystyrene-supported SeCSe pincer ligand and its corresponding palladium complex was prepared and ...

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New insights into re-entrant melting of microgel particles by polymer-induced aggregation experiments

31-May-2018 | Jochen Schneider; Marcel Werner; Eckhard Bartsch, Soft Matter, 2018

While microgels are in general described as soft particles, polystyrene (PS) microgels can be synthesized in a way that cross-link density has only a minor influence on their physical properties. Even though the particles swell in a good solvent, the imparted slight softness still allows a ...

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Surface immobilization of biotin-DNA conjugates on polystyrene beads via SPAAC for biological interaction and cancer theranostic applications

28-May-2018 | M. Vijaya Bharathi; Sourav De; T. Lavanya; Santanu Maiti; Bidisha Sarkar; S. K. Ashok Kumar; Priyankar Paira, New Journal of Chemistry, 2018

Here, surface immobilization of DNA conjugates via SPAAC for cancer theranostic applications was reported. The formation of DNA conjugates was supported by absorption and emission studies. The luminescent DNA conjugates exhibited high potency and high selectivity towards cancerous HeLa and MCF7 ...

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Intensely phosphorescent block copolymer micelles containing gold(I) complexes

27-May-2018 | Pingxia Guo; Qun He; Chen Wang; Zaili Hou; Bingran Yu; Weifeng Bu, Soft Matter, 2018

The electrostatic combination of anionic block copolymers with cationic gold(i) complexes leads to the formation of spherical micelles, where gold(i)-containing ionic cores were formed with anionic blocks and further stabilized by neutral blocks of polystyrene or poly(ethylene oxide). This ...

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Chloromethylated polystyrene immobilized ruthenium complex of 2-(2-pyridyl)benzimidazole catalyst for the synthesis of bioactive disubstituted ureas by carbonylation reaction

27-May-2018 | Tusar Kanto Dey; Kajari Ghosh; Priyanka Basu; Rostam Ali Molla; Sk. Manirul Islam, New Journal of Chemistry, 2018

Polymer supported transition metal complex catalysts have numerous applications as heterogeneous catalysts due to their ease of synthesis and commercial availability. Ru–Py–Merf was synthesized by anchoring 2-(2-pyridyl)benzimidazole to the polymer matrix, followed by loading of ruthenium salt. ...

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Facile fabrication of poly(glycidyl methacrylate)-b-polystyrene functional fibers under a shear field and immobilization of hemoglobin

27-May-2018 | Zhifeng Zhang; Wenwen Wang; Zhentan Lu; Ke Liu; Qiongzhen Liu; Dong Wang, New Journal of Chemistry, 2018

Poly(glycidyl methacrylate)-b-polystyrene (PGMA-b-PS) block copolymers were synthesized by two steps with 1,1-diphenylethylene (DPE) as the chain transfer reagent. The molecular weights and chemical structures of block copolymers were characterized by GPC, FTIR and NMR analyses. Then PGMA-b-PS ...

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Unusual photoresponses in the upper critical solution temperature of polymer solutions mediated by changes in intermolecular interactions in an azo-doped liquid crystalline solvent

26-May-2018 | Yuki Kawata; Takahiro Yamamoto; Hideyuki Kihara; Yasuhisa Yamamura; Kazuya Saito; Kohji Ohno, Physical Chemistry Chemical Physics, 2018

Photoinduced changes in the upper critical solution temperature (UCST) were investigated for polymer solutions in an azobenzene-doped liquid crystal solvent. The UCST of poly(methyl methacrylate) (PMMA) and polystyrene (PS) solutions dropped upon irradiation with UV light, which induces trans–cis ...

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