{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/7669"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/7669","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Estudo da copolimerização de estireno e cardanol em meios homogêneo e heterogêneo","abstract":"In polymer industry, cardanol, a liquid byproduct of cashew nuts, has shown great potential. The main advantage of cardanol is the ability of changing materials hydrophobicity, and due to unsaturation, it is polymerizable. Besteti et al. (2011) showed the copolymer obtained by the reaction between styrene, a traditional monomer, and cardanol is promising as support for enzyme immobilization. Thus, this dissertation aims to study the kinetic behavior of cardanol and styrene copolymerization, through experiments using different polymerizations techniques and mathematical model developed to describe experimental data. It was possible to confirm styrene and cardanol copolymerization for mass, suspension, emulsion and suspension-emulsion polymerizations. It was also possible to observe an inhibitory effect caused by cardanol. The results using azobisisobutyronitrile (AIBN) initiator in the organic phase showed high reaction rates and high molar masses, minimizing the inhibition observed. Using sodium lauryl sulfate (SLS) in aqueous phase also caused polymer with high rates and high molar masses. The particles for enzyme immobilization support showed significant results, with specific area similar to commercial supports. The proposed kinetic model, without considering inhibitory effect and impurity, was not successful to describe kinetics behavior of styrene and cardanol copolymerization.","abstract_html":"In polymer industry, cardanol, a liquid byproduct of cashew nuts, has shown great potential. The main advantage of cardanol is the ability of changing materials hydrophobicity, and due to unsaturation, it is polymerizable. Besteti et al. (2011) showed the copolymer obtained by the reaction between styrene, a traditional monomer, and cardanol is promising as support for enzyme immobilization. Thus, this dissertation aims to study the kinetic behavior of cardanol and styrene copolymerization, through experiments using different polymerizations techniques and mathematical model developed to describe experimental data. It was possible to confirm styrene and cardanol copolymerization for mass, suspension, emulsion and suspension-emulsion polymerizations. It was also possible to observe an inhibitory effect caused by cardanol. The results using azobisisobutyronitrile (AIBN) initiator in the organic phase showed high reaction rates and high molar masses, minimizing the inhibition observed. Using sodium lauryl sulfate (SLS) in aqueous phase also caused polymer with high rates and high molar masses. The particles for enzyme immobilization support showed significant results, with specific area similar to commercial supports. The proposed kinetic model, without considering inhibitory effect and impurity, was not successful to describe kinetics behavior of styrene and cardanol copolymerization.","abstract_has_math":false,"creators":["Galvão, Letícia de Albuquerque"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Pinto, José Carlos Costa da Silva"],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-09","date_published":"2016-09","updated_at":"2026-07-24T01:16:26Z","subjects":["Copolimerização de estireno e cardanol","Suporte para imobilização de enzimas","Modelo Cinético"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/7669","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Pinto, José Carlos Costa da Silva"]},{"key":"dc:creator","label":"Author","values":["Galvão, Letícia de Albuquerque"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-05-02T17:21:33Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:05:08Z"]},{"key":"dc:date.issued","label":"Date","values":["2016-09"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Copolimerização de estireno e cardanol","Suporte para imobilização de enzimas","Modelo Cinético"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/7669"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["In polymer industry, cardanol, a liquid byproduct of cashew nuts, has shown great potential. The main advantage of cardanol is the ability of changing materials hydrophobicity, and due to unsaturation, it is polymerizable. Besteti et al. (2011) showed the copolymer obtained by the reaction between styrene, a traditional monomer, and cardanol is promising as support for enzyme immobilization. Thus, this dissertation aims to study the kinetic behavior of cardanol and styrene copolymerization, through experiments using different polymerizations techniques and mathematical model developed to describe experimental data. It was possible to confirm styrene and cardanol copolymerization for mass, suspension, emulsion and suspension-emulsion polymerizations. It was also possible to observe an inhibitory effect caused by cardanol. The results using azobisisobutyronitrile (AIBN) initiator in the organic phase showed high reaction rates and high molar masses, minimizing the inhibition observed. Using sodium lauryl sulfate (SLS) in aqueous phase also caused polymer with high rates and high molar masses. The particles for enzyme immobilization support showed significant results, with specific area similar to commercial supports. The proposed kinetic model, without considering inhibitory effect and impurity, was not successful to describe kinetics behavior of styrene and cardanol copolymerization."]},{"key":"dc:title","label":"Title","values":["Estudo da copolimerização de estireno e cardanol em meios homogêneo e heterogêneo"]}]}],"canonical_facts":{"dc:contributor.advisor":["Pinto, José Carlos Costa da Silva"],"dc:creator":["Galvão, Letícia de Albuquerque"],"dc:date.accessioned":["2019-05-02T17:21:33Z"],"dc:date.available":["2026-05-16T03:05:08Z"],"dc:date.issued":["2016-09"],"dc:description.abstract":["In polymer industry, cardanol, a liquid byproduct of cashew nuts, has shown great potential. The main advantage of cardanol is the ability of changing materials hydrophobicity, and due to unsaturation, it is polymerizable. Besteti et al. (2011) showed the copolymer obtained by the reaction between styrene, a traditional monomer, and cardanol is promising as support for enzyme immobilization. Thus, this dissertation aims to study the kinetic behavior of cardanol and styrene copolymerization, through experiments using different polymerizations techniques and mathematical model developed to describe experimental data. It was possible to confirm styrene and cardanol copolymerization for mass, suspension, emulsion and suspension-emulsion polymerizations. It was also possible to observe an inhibitory effect caused by cardanol. The results using azobisisobutyronitrile (AIBN) initiator in the organic phase showed high reaction rates and high molar masses, minimizing the inhibition observed. Using sodium lauryl sulfate (SLS) in aqueous phase also caused polymer with high rates and high molar masses. The particles for enzyme immobilization support showed significant results, with specific area similar to commercial supports. The proposed kinetic model, without considering inhibitory effect and impurity, was not successful to describe kinetics behavior of styrene and cardanol copolymerization."],"dc:identifier.uri":["http://hdl.handle.net/11422/7669"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Copolimerização de estireno e cardanol","Suporte para imobilização de enzimas","Modelo Cinético"],"dc:title":["Estudo da copolimerização de estireno e cardanol em meios homogêneo e heterogêneo"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:26Z"}