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Relevant bibliographies by topics / Polimeri porosi

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Journal articles
Dissertations / Theses

Academic literature on the topic 'Polimeri porosi'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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Journal articles on the topic "Polimeri porosi"

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Rusman, Ade, and Nuning Vita Hidayati. "Pemanfaatan Mikroorganisme untuk Biodegradasi Mikroplastik." MAIYAH 1, no. 1 (2022): 66. http://dx.doi.org/10.20884/1.maiyah.2022.1.1.6655.

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Plastik telah menjadi bagian dari kehidupan manusia. Industri makanan olahan telah didominasi oleh plastik kemasan karena sifatnya yang fleksibel dengan mengambil porsi 80 persen. Penggunaan plastik dalam pengemasan, pengiriman, perindustrian dan pertanian baik di pedesaan maupun perkotaan yang diluar kendali telah menimbulkan masalah yang serius yaitu sampah plastik dan pencemaran lingkungan. Mikroplastik merupakan hasil proses dekomposisi sampah plastik yang berlangsung sangat lama melalui berbagai proses kimiawi, fisik, maupun biologi. Mikroplastik dan nanoplastik yang mencemari ekosistem p

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2

Jasiński, Bartłomiej, Małgorzata Uliasz, Grzegorz Zima, and Sławomir Błaż. "Badania nad podwyższeniem odporności płuczek wiertniczych z uwagi na niekorzystne warunki złożowe podczas wierceń geotermalnych." Nafta-Gaz 78, no. 4 (2022): 274–87. http://dx.doi.org/10.18668/ng.2022.04.04.

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Udostępnianie złóż geotermalnych wiąże się z wysokimi wymogami stawianymi stosowanym płuczkom wiertniczym. Trudności podczas wiercenia wynikają głównie z podwyższonej temperatury i ciśnienia oraz czynników związanych ze składem mineralogicznym przewiercanych warstw oraz dopływających wód. W warunkach podwyższonej temperatury dochodzi do obniżenia wartości parametrów reologicznych i do wzrostu filtracji płuczki wiertniczej. Dzieje się tak na skutek zmian fizycznych zachodzących w płuczce pod wpływem temperatury lub pod wpływem degradacji polimerów odpowiedzialnych za nadawanie płuczce odpowiedn

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Yusuf, Jasman, Hendro Widarto, and Arief Hidayat. "Studi Penggunaan Aspal Modifikasi pada Campuran Aspal Porus." Jurnal Karajata Engineering 1, no. 1 (2021): 25–33. http://dx.doi.org/10.31850/karajata.v1i1.692.

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Penelitian ini bertujuan Untuk mengetahui pengaruh campuran aspalporus yang menggunakan aspal Modifikasi dengan gradasi IowaStormwater Managemen (2009).Untuk mengetahui campuran aspal porusyang menggunakan bahan pengikat aspal modifikasi agar dapatmemenuhi parameter struktur perkerasan Aspal Berpori.Penelitian ini dilaksanakan di Laboraturium Pemeriksaan BahanJalan dan Jembatan Bina Marga Dinas Prasarana Wilayah ProvinsiSulawesi Selatan Km. 16 Kota Makassar dengan metode kuantitatif. Datadatahasil uji laboraturium diolah dalam bentuk angka, grafik dan table serta dianalisis dengan membandingka

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Mangansige, Miranti, Thelma D. J. Tuju, and Christine F. Mamuaja. "Pectin Extraction From The Skin Of Lime (Citrus aurantifolia) With Variety Of Orange Skin Color." Jurnal Agroekoteknologi Terapan 3, no. 2 (2022): 356–61. http://dx.doi.org/10.35791/jat.v3i2.44344.

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    Pectin is one of polymer compounds which has a lot advantages, such as binding water, forming gels, or thickening liquid. This compound usually used as a raw material of various derived products of foods and pharmaceuticals as well, commonly found in flavedo, albedo, and edible parts in lime. Pectin is solid and has a white-brownish color. The other physical properties such as solubility, viscosity, and gel-forming ability depend on its chemical characteristics of the pectin itself such as methoxyl levels, degree of esterification. Pectin is widely used in food prod

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Arsat, Rashidah, Mahyuddin Arsat, Michael Breedon, Kourosh Kalantar Zadeh, and Wojtek Wlodarski. "Conductometric H₂ Gas Sensor With Doped And Dedoped Electropolymerized Polyaniline Nanostructures." Jurnal Teknologi, March 21, 2012. http://dx.doi.org/10.11113/jt.v55.924.

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Dalam kertas kerja ini, struktur dan prestasi pengesanan gas oleh polianilin yang berskala nano yang dimendap di atas transduser lithium tantalate. Polimer berkonduksi ini disintesiskan melalui teknik electropolymerization. Struktur permukaan polianilin dicirikan dengan menggunakan Mikroskop Pengesan Elektron (Scanning Electron Microscopy). Didapati bahawa polianiline yang terhasil dipermukaan transducer adalah 3–dimensi struktur dan poros. Pengesan ini kemudian disiasat prestasinya terhadap konsentrasi gas yang berbeza dan berada dalam keadaan suhu bilik. Kata kunci: Pengesan H2; polianilin,

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Floroian, Laura. "Studiu de biocompatibilitate asupra acoperirilor de biosticlă – polimer pentru implanturi | [Biocompatibilitystudy of bioglass-polymernanocompositecoatings for implants]." Jurnal Medical Brasovean, April 3, 2024, 13–21. http://dx.doi.org/10.31926/jmb.2023.2.3.

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Introduction: Bioactive glasses from the SiO2-Na2O-K2O-CaO-MgO-P2O5 system have special properties in contact with simulated human fluid, which makes them the ideal candidate for implantology. The main objective of the study: The realization of bioglass and polymer coatings for titanium implants, by the matrix-assisted pulsed laser evaporation method, which would increase their bioactivity and biocompatibility. Results and discussion: Thin films of bioactive glass and polymethyl methacrylate were deposited on Ti substrates, which were then analyzed by electrochemical methods to evaluate their

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Dissertations / Theses on the topic "Polimeri porosi"

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SCARPA, ANTONIO. "Sensori nano-gravimetrici: riduzione del fattore umidità mediante polimeri porosi superficiali." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2009. http://hdl.handle.net/2108/1094.

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One of the highest interfering for the determination of VOC's in the sensoristic' s field, is the humidity. in this thesis my aim is to develop a physic system able of to reduce the humidity factor. For this reason has been tested the influence of humidity against some nano-gravimetric sensors based on of quartz oscillating with fundamental frequency of 20 MHz, with surface modified with Me-porphyrines and Me-corroles with Langmuir-Schaefer technique (LS) before and after the deposition of six layers of Poly-methyl methacrylate porous (PMMA). The decrease of sensibility' s against the

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PEREGO, JACOPO. "Functional Porous Materials: Tailored Adsorption Properties, Flexibility and Advanced Optical Applications." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/263593.

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L'attività di ricerca si è occupata della progettazione, sintesi e caratterizzazione di materiali porosi. Diverse linee di ricerca sono state perseguite. Materiali porosi per l'assorbimento selettivo e lo stoccaggio di gas. Le proprietà di una serie di polimeri porosi organici sono state studiate attraverso misure di assorbimento di gas e misure di risonanza magnetica nucleare dello stato solido in presenza di una fase gassosa per comprendere la natura delle interazioni tra le molecole ospiti e le pareti dei canali. In particolare, si è verificata l'elevata energia di interazione tra le mole

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Fiocco, Laura. "Silicate ceramics from preceramic polymers and fillers." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424243.

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The topic of this research work deals with the synthesis, the characterization and the optimization of silicate ceramics, realized through the controlled pyrolysis of preceramic polymers filled with inorganic fillers. According to this synthesis route, preceramic polymers can be used as silica precursors by virtue of their conversion from polymers to ceramics by thermal oxidative reactions. Besides the low cost, large availability and easy-handling of the preceramic polymers, a further advantage regards the fabrication of the final ceramic from the process point of view. In fact, the componen

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VAKIFAHMETOGLU, CEKDAR. "FABRICATION AND CHARACTERIZATION OF POROUS CERAMICS WITH HIERARCHICAL POROSITY." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3422377.

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The research work presented in this thesis is concerned with the production of porous components by using preceramic polymers as a starting precursor. During the preliminary studies on which the production of polymer derived cellular ceramics was based; various compositions have been investigated. Cellular SiOC ceramics having a complex morphology were produced using three different types of polysiloxane precursors. Pore formation was attributed to the different polymer architecture which resulted in a different behavior (larger weight loss, shrinkage and gas evolution) upon pyrolysis. In this

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Muscelli, Wesley Cardoso. "Preparação e caracterização de materiais de carbono via termopolimerização de pré-polímero fenol-formaldeído." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-14092017-164746/.

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O presente trabalho relata a investigação de uma rota reprodutível de obtenção de materiais de carbono a partir do tratamento térmico de pré-polímero fenol formaldeído (resina fenólica) levando em consideração características morfológicas e estruturais.O controle da composição de resina bem como o estabelecimento cuidadoso da rampa de aquecimento foram fatores decisisvos para a obtenção de materiais análogos ao carbono vítreo de maneira reprodutível. Os materiais obtidos apresentaram reduzida presença de poros e condutividade térmica apreciável uma vez que foram testados como eletrodos de trab

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Fávaro, Marcelo Alves. "Síntese e caracterização da MOF NH2-MIL-125 (Ti) e sua aplicação como catalisador na reação de condensação de Knoevenagel /." Araraquara, 2016. http://hdl.handle.net/11449/138193.

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Orientador: Marcelo Nalin<br>Co-orientador: Regina Célia Galvão Frem<br>Banca: Leandro Martins<br>Banca: Gregoire Jean-François Demets<br>Resumo: O interesse no estudo das MOFs ( Metal Organic Framework ) vem crescendo nos últimos anos, e isso pode ser explicado pela grande versatilidade química e potencialidades de aplicação desses materiais porosos. Possuem funçõe s que se estendem desde sensores, separação de gás, catálise, liberação controlada de fármacos, até aplicações elétricas e ópticas. Dentro desse contexto, o recente grupo de pesquisa criado no Instituto de Química da UNESP de Arara

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Baltieri, Rodrigo Cirillo. "Sintese de macro esferas porosas de amino polimero : aplicação em imobilização de biocompostos." [s.n.], 1996. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266481.

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Orientador: Lucia Helena I. Mei<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-07-24T09:34:27Z (GMT). No. of bitstreams: 1 Baltieri_RodrigoCirillo_M.pdf: 4467063 bytes, checksum: bcd3f04d5a89551ebe8be98995464a40 (MD5) Previous issue date: 1996<br>Resumo: Neste trabalho foram sintetizadas as resinas de N-metilolacrilamida e uréia- formaldeído a partir da reação de condensação da acrilamida e uréia, respectivamente, com o formaldeído. Essas resinas e o monômero de acrilamida foram utilizados na síntese de macro

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8

Balena, Solange Pizzolatto. "Efeito de polimeros hidroretentores nas propriedades fisicas e hidraulicas de dois meios porosos." reponame:Repositório Institucional da UFPR, 2012. http://hdl.handle.net/1884/27478.

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O presente trabalho teve por objetivo verificar o efeito de polímeros hidroretentores nas propriedades físicas e hidráulicas de dois meios porosos. Os experimentos foram realizados no laboratório de Física do Solo, do Departamento de Solos da Universidade Federal do Paraná, no período de 18/03/97 a 30/10/97. A pesquisa utilizou um tipo de polímero hidroretentor, de procedência Belga, incorporado a dois meios porosos de distintas propriedades físico-químicas: um Latossolo vermelho escuro, textura argilosa, e uma areia marinha. Os polímeros foram aplicados na forma de grão seco, nas seguintes co

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Zarbin, Aldo José Gorgatti 1968. "Novos nanocompositos obtidos pelas interações de compostos organometalicos e polimeros condutores com vidros porosos." [s.n.], 1997. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249019.

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Orientador: Oswaldo Luiz Alves<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-22T05:19:50Z (GMT). No. of bitstreams: 1 Zarbin_AldoJoseGorgatti_D.pdf: 5488325 bytes, checksum: e58549cb8bdbe80c1f5fef703a1fc617 (MD5) Previous issue date: 1997<br>Doutorado

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Serafim, Bruno Morais. "Microestruturas porosas de poli (metil metacrilato) depositadas/funcionalizadas por eletrofiação." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/43518.

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Orientador: Prof. Dr. Cyro Ketzer Saul<br>Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduação em Engenharia e Ciência dos Materiais - PIPE. Defesa: Curitiba, 22/02/2016<br>Inclui referências : f. 120-122<br>Área de concentração: Engenharia e ciência de materiais<br>Resumo: Materiais poliméricos com grande área superficial por unidade de massa apresentam grande potencial de aplicação na detecção de doenças, drug delivery e engenharia de tecidos, assim como no desenvolvimento de sensores químicos e biológicos. Entretanto, a produção destes mate

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