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Academic literature on the topic 'Polimero star'
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Journal articles on the topic "Polimero star"
DWORAK, ANDRZEJ, BARBARA TRZEBICKA, AGNIESZKA KOWALCZUK, ALICJA UTRATA-WESOLEK, WOJCIECH WALACH, MARCIN LIBERA, and JURAJ KRONEK. "Thermosensitive star polymers — synthesis and properties." Polimery 57, no. 6 (June 2012): 441–48. http://dx.doi.org/10.14314/polimery.2012.441.
Full textKOWALCZUK-BLEJA, AGNIESZKA, BARBARA SIEROCKA, BARBARA TRZEBICKA, and ANDRZEJ DWORAK. "Star-shaped polymers with branched poly[p-(halogenmethyl)styrene] cores." Polimery 50, no. 07/08 (July 2005): 555–61. http://dx.doi.org/10.14314/polimery.2005.555.
Full textMendrek, Barbara. "Behavior of methacrylate star copolymers in solutions." Polimery 61, no. 06 (June 2016): 413–20. http://dx.doi.org/10.14314/polimery.2016.413.
Full textPENCZEK, STANISLAW, TADEUSZ BIELA, and GRZEGORZ LAPIENIS. "Star-shaped and markedly branched polyethers and polyesters." Polimery 47, no. 09 (September 2002): 600–610. http://dx.doi.org/10.14314/polimery.2002.600.
Full textZoltowska, Karolina, Marcin Sobczak, and Ewa Oledzka. "Polyurethanes in pharmacy — current state and perspectives of the development." Polimery 59, no. 10 (October 2014): 689–98. http://dx.doi.org/10.14314/polimery.2014.689.
Full textCHYLINSKA, MARTA, and HALINA KACZMAREK. "Polymeric biocides based on N-halamines: current state-of-the art." Polimery 57, no. 1 (January 2012): 3–10. http://dx.doi.org/10.14314/polimery.2012.003.
Full textPIECZYNSKA, DIANA, URSZULA OSTASZEWSKA, DARIUSZ M. BIELINSKI, and JACEK JAGIELSKI. "Modification of polymers with the application of ion beam bombardment. Part I. History, recent developments, and perspectives for development." Polimery 56, no. 06 (June 2011): 439–51. http://dx.doi.org/10.14314/polimery.2011.439.
Full textMichalski, Adam, and Grzegorz Lapienis. "Synthesis and characterization of high-molar-mass star-shaped poly(l-lactide)s." Polimery 63, no. 7/8 (July 2018): 488–94. http://dx.doi.org/10.14314/polimery.2018.7.2.
Full textBOCIAGA, ELZBIETA, and PAWEL PALUTKIEWICZ. "Effects of blowing agent content and injection moulding conditions on selected properties and surface quality of polypropylene moulded parts." Polimery 57, no. 1 (January 2012): 38–48. http://dx.doi.org/10.14314/polimery.2012.038.
Full textAdamus-Wlodarczyk, Agnieszka, Emilia Irzmanska, and Bogumil Brycki. "Current knowledge about self-healing polymers in the aspect of application for full-rubber protective gloves." Polimery 63, no. 7/8 (July 2018): 495–502. http://dx.doi.org/10.14314/polimery.2018.7.3.
Full textDissertations / Theses on the topic "Polimero star"
SILVANO, SELENA. "Polymers for a green and sustainable economy: star and comb polymers as viscosity modifiers and high sulfurated polymers." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/378874.
Full textThis thesis addresses two macro themes concerning the sustainable development which implies reduction of petroleum dependence and minimization of carbon footprint. The Part I “Innovative additives as viscosity modifiers for energy saving lubricants” concerns the design and development of new viscosity modifier additives (VMs), which are fundamental to regulate the viscosity/temperature dependence in lubricant oils enabling them to prevent energy loss due to friction phenomena which determines an increment in fuel consumption and consequently the associated emission. New controlled star and comb polymer architectures with styrene-b-isoprene copolymer arms were synthesized. Arms with very low molecular weight dispersion were obtained by anionic polymerization. Star like structures were produced by arm-first method and new comb-copolymers were achieved through “grafting onto” method. Four- and six-arm star polymer structures were prepared by adding chloro alkylsilane cores to living polymeric arms. Comb polymers were synthesized by adding a new polymeric skeleton made of poly(t-butyl-6-5-norbornene-exo-2,3-dicarboxyimidohexanoate) as terminal agent during the arm polymerization. Comb copolymers with up 16-arms were obtained. The isoprene units of styrene-diene copolymers were hydrogenated to make their structure stable to oxidative and mechanical stress. After hydrogenation, the six-arm star copolymers exhibited a good low temperature behaviour, showing excellent compatibility with the pour point depressant and mechanical shear stability slightly better than most commercial VMs. Moreover, it is expected that after hydrogenation the new comb copolymers will have thickening efficiency superior to that of the hydrogenated star copolymers for their large number of arms. The Part II “Sulfur-rich polymers” regards the reuse of carbon disulfide (CS2) (Part II A) and elemental sulfur (Part II B), as feedstocks for polymer production, to help to overcome “excess sulfur problem” and to produce high value products without depleting natural resources. In part II A, for the first time an investigation of the copolymerization of CS2 and cyclohexene sulfide (CHS) catalysed by salen and salphen chromium complexes and PPNX salt as cocatalyst was performed at different times and temperatures. Both catalytic systems produce both polymer and cyclic products. Salphen based catalysts, in comparison with salen based ones, show higher productivity and selectivity for polymers with high molecular weight up to 18 kg/mol when the reaction is carried out at 25 °C. At higher temperature with (salphen)CrCl, the maximum value of selectivity for copolymers (72 %) was obtained at short reaction time (3 h). It was found that poly(trithiocyclohexylcarbonate)s possess high refractive index (n > 1.72), and antimicrobial proprieties against E. Coli and S. Aureus which along with the Tg values of 80 °C make these materials suitable for interesting applications different from those of poly(trithiopropylencarbonate)s. In part II B, dipentene, a bio-based sustainable feedstock, was used for first time in combination with elemental sulfur, to produce green-polysulfides alternative to those produced from enantiomeric limonene. Poly(S-dipentene)s with high sulfur content (> 50 %) were synthesized by catalytic inverse polymerization in presence of zinc-based accelerators at 140 °C. Accelerators allowed to reduce mixing time between dipentene and sulfur. Stable ter-polysulfides with depressed depolymerization reactions were achieved, by adding 10 % of natural crosslinker such as garlic oil, myrcene and diallyl disulfide. Ter-polysulfides produced are soft solids with Tg values between -1 and 4 °C. Shape persistent blend of ter-polysulfide and commercial polystyrene was prepared. The polysulfide-polystyrene blend resulted processable, mouldable and able to remove ferric ions from aqueous solution.
Kowalczuk-Bleja, Agnieszka. "The synthesis of core-shell star polymers via controlled and living polymerizations." Rozprawa doktorska, 2004. https://repolis.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=4746.
Full textKowalczuk-Bleja, Agnieszka. "The synthesis of core-shell star polymers via controlled and living polymerizations." Rozprawa doktorska, 2004. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=4746.
Full textMatula, Grzegorz. "Struktura i własności stali szybkotnących formowanych z proszków." Rozprawa doktorska, 2002. https://repolis.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=2608.
Full textMatula, Grzegorz. "Struktura i własności stali szybkotnących formowanych z proszków." Rozprawa doktorska, 2002. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=2608.
Full textBooks on the topic "Polimero star"
Steller, Ryszard. Modyfikacja polimerów: Stan i perspektywy w roku 2007. Wrocław: Oficyna Wydawn. Politechniki Wrocławskiej, 2007.
Find full textSteller, Ryszard. Modyfikacja polimerów: Stan i perspektywy w roku 2009. Wrocław: Oficyna Wydawnicza Politechniki Wrocławskiej, 2009.
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