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Depolimerizacija poliamida 1010 s hidrolizo v kislem in vplivom mikrovalov
ID Žagar, Leon (Author), ID Kralj Cigić, Irena (Mentor) More about this mentor... This link opens in a new window

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Abstract
Namen dela je bila popolna kislinsko katalizirana depolimerizacija poliamida (PA) 1010, s katero dobimo sestavna monomera PA1010, ki ju lahko ponovno polimeriziramo v visoko kvalitetne produkte. Za gretje reakcijskih zmesi sem uporabili mikrovalove, saj sem s tem zmanjšal porabo energije in skrajšal čas reakcije. Pri depolimerizaciji sem preučeval reakcijske pogoje, pri katerih je PA 1010 popolnoma depolimeriziral; to je temperaturo, koncentracijo HCl in reakcijski čas. Uspešnost depolimerizacije sem zasledoval s prisotnostjo oligomerov v reakcijskih zmeseh z 1H NMR in HPLC. Ko oligomeri niso bili več prisotni v reakcijski zmesi, je bila reakcija depolimerizacije popolna. Nastala produkta sebacinsko kislino in 1,10-diaminodekan sem izoliral in očistil s prekristalizacijo oziroma destilacijo. Čistost produktov sem določil z 1H NMR, HPLC in DSC.

Language:Slovenian
Keywords:poliamid 1010, depolimerizacija, hidroliza, mikrovalovi, kemijska reciklaža
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2020
PID:20.500.12556/RUL-119674 This link opens in a new window
COBISS.SI-ID:31591427 This link opens in a new window
Publication date in RUL:10.09.2020
Views:1303
Downloads:193
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Secondary language

Language:English
Title:Depolimerization of polyamide 1010 by acid hydrolysis and assisted by microwaves
Abstract:
The goal of this work was complete acid catalyzed depolymerization of polyamide (PA) 1010 to obtain the constituent PA 1010 monomers as final products, which can be polymerized again into high quality products. Microwaves were used to heat the reaction mixtures, which allow for reduced energy consumption and shortening the reaction time. In depolymerization experiments I studied the reaction conditions under which PA 1010 completely depolymerized; these were the temperature, HCl concentration, and reaction time. The degree of depolymerization was monitored by the presence of oligomers in reaction mixtures by 1H NMR and HPLC. When the oligomers were no longer present in the reaction mixtures, the depolymerization reaction was considered as complete. The resulting products sebacic acid and 1,10-diaminodecane were isolated and purified by recrystallization and distillation, respectively. The purity of the monomer products was evaluated by 1H NMR, HPLC and DSC.

Keywords:polyamide 1010, depolymerization, hydrolysis, microwaves, chemical recycling

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