{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0298"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0298","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΜΕΘΟΔΟΣ ΣΥΝΘΕΣΗΣ Η/ΚΑΙ ΕΠΙΛΟΓΗΣ ΑΡΙΣΤΩΝ ΔΙΑΛΥΤΩΝ ΠΡΟΣ ΕΠΙΤΑΧΥΝΣΗ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER","abstract":"BASED ON A RELATION BETWEEN REACTIONS RATE AND ACTIVITY COEFFICIENTS (Γ) AND, ON A COMPUTING METHOD OF ACTIVITY COEFFICIENTS (NAMED UNIFAC), SOLVENTS EFFECTS WERE STUDIED ON 2 DIELS-ALDER REACTIONS RATE AND GENERAL CONCLUSIONS CAME OUT. THESE CONCLUSIONS WERE PROVED AND EXTENDED TO 9 DIELS-ALDER REACTIONS WITH LITERATURE EXPERIMENTAL DATA. THE CONCLUSIONS ARE LISTED AS FOLLOWING: - THE RATE OF THE DIELS-ALDER REACTIONS INCREASES AS MUCH AS THE VAN DER WAALS SURFACE AREA (AW) DECREASES, AND AT THE SAME TIME, THE VAN DER WAALS VOLUME (VW) OF THE SOLVENT MOLECULE INCREASES. - THE RATE OF THE TWO REACTIONS IS MAINLY AFFECTED FROM THE SURFACE AREA (AW) AND NOT FROM THE SOLVENT MOLECULE VOLUME (VW). - CONSEQUENTLY THE SMALLEST THE SOLVENT MOLECULE IS AND SPHERIC OR COMPACT, THE MOST THE RATE OF THE REACTIONS INCREASES. THE ABOVE MENTIONED CONCLUSIONS ARE DESCRIBED WITH A MATHEMATICAL MODEL, AND THEIR PHYSICAL EXPLANATION HAVE BEEN DONE WITH A MECHANISTIC MODEL.","abstract_html":"BASED ON A RELATION BETWEEN REACTIONS RATE AND ACTIVITY COEFFICIENTS (Γ) AND, ON A COMPUTING METHOD OF ACTIVITY COEFFICIENTS (NAMED UNIFAC), SOLVENTS EFFECTS WERE STUDIED ON 2 DIELS-ALDER REACTIONS RATE AND GENERAL CONCLUSIONS CAME OUT. THESE CONCLUSIONS WERE PROVED AND EXTENDED TO 9 DIELS-ALDER REACTIONS WITH LITERATURE EXPERIMENTAL DATA. THE CONCLUSIONS ARE LISTED AS FOLLOWING: - THE RATE OF THE DIELS-ALDER REACTIONS INCREASES AS MUCH AS THE VAN DER WAALS SURFACE AREA (AW) DECREASES, AND AT THE SAME TIME, THE VAN DER WAALS VOLUME (VW) OF THE SOLVENT MOLECULE INCREASES. - THE RATE OF THE TWO REACTIONS IS MAINLY AFFECTED FROM THE SURFACE AREA (AW) AND NOT FROM THE SOLVENT MOLECULE VOLUME (VW). - CONSEQUENTLY THE SMALLEST THE SOLVENT MOLECULE IS AND SPHERIC OR COMPACT, THE MOST THE RATE OF THE REACTIONS INCREASES. THE ABOVE MENTIONED CONCLUSIONS ARE DESCRIBED WITH A MATHEMATICAL MODEL, AND THEIR PHYSICAL EXPLANATION HAVE BEEN DONE WITH A MECHANISTIC MODEL.","abstract_has_math":false,"creators":["Στεφανίδης, Ιωάννης"],"institution":"National Technical University of Athens (NTUA)","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1986,"date_issued":"1986","date_published":"1986","updated_at":"2026-07-24T02:25:11Z","subjects":["ΑΝΤΙΔΡΑΣΕΙΣ DIELS-ALDER Υ DIELS-ALDER REACTIONS LIQUID PHASE","ΕΠΙΤΑΧΥΝΣΗ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΜΕ ΔΙΑΛΥΤΕΣ","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Χημικού Μηχανικού","Engineering and Technology","Chemical Engineering"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0298"],"render_values":[{"text":"10.12681/eadd/0298","href":"https://doi.org/10.12681/eadd/0298","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0298","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Στεφανίδης, Ιωάννης"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1986"]},{"key":"dc:publisher","label":"Institution","values":["National Technical University of Athens (NTUA)","Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["ΑΝΤΙΔΡΑΣΕΙΣ DIELS-ALDER Υ DIELS-ALDER REACTIONS LIQUID PHASE","ΕΠΙΤΑΧΥΝΣΗ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΜΕ ΔΙΑΛΥΤΕΣ","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Χημικού Μηχανικού","Engineering and Technology","Chemical Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0298","http://hdl.handle.net/10442/hedi/0298"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["BASED ON A RELATION BETWEEN REACTIONS RATE AND ACTIVITY COEFFICIENTS (Γ) AND, ON A COMPUTING METHOD OF ACTIVITY COEFFICIENTS (NAMED UNIFAC), SOLVENTS EFFECTS WERE STUDIED ON 2 DIELS-ALDER REACTIONS RATE AND GENERAL CONCLUSIONS CAME OUT. THESE CONCLUSIONS WERE PROVED AND EXTENDED TO 9 DIELS-ALDER REACTIONS WITH LITERATURE EXPERIMENTAL DATA. THE CONCLUSIONS ARE LISTED AS FOLLOWING: - THE RATE OF THE DIELS-ALDER REACTIONS INCREASES AS MUCH AS THE VAN DER WAALS SURFACE AREA (AW) DECREASES, AND AT THE SAME TIME, THE VAN DER WAALS VOLUME (VW) OF THE SOLVENT MOLECULE INCREASES. - THE RATE OF THE TWO REACTIONS IS MAINLY AFFECTED FROM THE SURFACE AREA (AW) AND NOT FROM THE SOLVENT MOLECULE VOLUME (VW). - CONSEQUENTLY THE SMALLEST THE SOLVENT MOLECULE IS AND SPHERIC OR COMPACT, THE MOST THE RATE OF THE REACTIONS INCREASES. THE ABOVE MENTIONED CONCLUSIONS ARE DESCRIBED WITH A MATHEMATICAL MODEL, AND THEIR PHYSICAL EXPLANATION HAVE BEEN DONE WITH A MECHANISTIC MODEL.","ΜΕ ΒΑΣΗ ΜΙΑ ΣΧΕΣΗ ΜΕΤΑΞΥ ΤΟΥ ΡΥΘΜΟΥ ΑΝΤΙΔΡΑΣΕΩΝ ΚΑΙ ΣΥΝΤΕΛΕΣΤΩΝ ΕΝΕΡΓΟΤΗΤΑΣ (Γ) ΚΑΙ, ΜΙΑΣ ΜΕΘΟΔΟΥ ΥΠΟΛΟΓΙΣΜΟΥ ΣΥΝΤΕΛΕΣΤΩΝ ΕΝΕΡΓΟΤΗΤΑΣ (ΤΗΣ UNIFAC), ΜΕΛΕΤΗΘΗΚΕ Η ΕΠΙΔΡΑΣΗ ΔΙΑΦΟΡΩΝ ΔΙΑΛΥΤΩΝ ΣΤΟ ΡΥΘΜΟ 2 ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΚΑΙ ΕΞΗΧΘΗΣΑΝ ΓΕΝΙΚΑ ΣΥΜΠΕΡΑΣΜΑΤΑ. ΤΑ ΣΥΜΠΕΡΑΣΜΑΤΑ ΑΥΤΑ ΣΤΗ ΣΥΝΕΧΕΙΑ ΤΕΚΜΗΡΙΩΘΗΚΑΝ ΚΑΙ ΓΕΝΙΚΕΥΘΗΚΑΝ ΣΕ 9 ΑΝΤΙΔΡΑΣΕΙΣ DIELS-ALDER ΜΕ ΠΕΙΡΑΜΑΤΙΚΑ ΔΕΔΟΜΕΝΑ ΤΗΣ ΒΙΒΛΙΟΓΡΑΦΙΑΣ. ΤΑ ΣΥΜΠΕΡΑΣΜΑΤΑ ΕΙΝΑΙ: - Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΑΥΞΑΝΟΝΤΑΙΟΣΟ ΠΕΡΙΣΣΟΤΕΡΟ ΕΛΑΤΤΩΝΕΤΑΙ Η ΕΠΙΦΑΝΕΙΑ ΚΑΤΑ VAN DER WAALS (AW) ΚΑΙ ΤΑΥΤΟΧΡΟΝΑ ΑΥΞΑΝΕΤΑΙ Ο ΟΓΚΟΣ ΚΑΤΑ VAN DER WAALS (VW) ΤΟΥ ΜΟΡΙΟΥ ΤΟΥ ΔΙΑΛΥΤΗ. - Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΕΠΗΡΕΑΖΕΤΑΙ ΚΥΡΙΩΣ ΑΠΟ ΤΗΝ ΕΠΙΦΑΝΕΙΑ (AW) ΚΑΙ ΟΧΙ ΑΠΟ ΤΟΝ ΟΓΚΟ (VW) ΤΟΥ ΜΟΡΙΟΥ ΤΟΥ ΔΙΑΛΥΤΗ. - ΟΣΟ ΛΟΙΠΟΝ ΠΙΟ ΜΙΚΡΟ ΕΙΝΑΙ ΤΟ ΜΟΡΙΟ ΤΟΥ ΔΙΑΛΥΤΗ ΚΑΙ ΠΙΟ ΣΦΑΙΡΙΚΟ 'Η ΣΥΜΠΑΓΕΣ, ΤΟΣΟ ΠΕΡΙΣΣΟΤΕΡΟ ΑΥΞΑΝΕΤΑΙ Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ. ΤΑ ΑΝΩΤΕΡΩ ΣΥΜΠΕΡΑΣΜΑΤΑ ΠΕΡΙΓΡΑΦΟΝΤΑΙ ΥΠΟ ΜΟΡΦΗ ΜΑΘΗΜΑΤΙΚΟΥ ΜΟΝΤΕΛΟΥ, ΚΑΙ Η ΦΥΣΙΚΗ ΤΟΥΣ ΕΡΜΗΝΕΙΑ ΤΕΛΟΣ, ΔΙΔΕΤΑΙ ΜΕ ΤΗ ΒΟΗΘΕΙΑ ΜΗΧΑΝΙΣΤΙΚΟΥ ΜΟΝΤΕΛΟΥ."]},{"key":"dc:title","label":"Title","values":["ΜΕΘΟΔΟΣ ΣΥΝΘΕΣΗΣ Η/ΚΑΙ ΕΠΙΛΟΓΗΣ ΑΡΙΣΤΩΝ ΔΙΑΛΥΤΩΝ ΠΡΟΣ ΕΠΙΤΑΧΥΝΣΗ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER","SYNTHESIS OR/AND SELECTION METHOD OF OPTIMIZED SOLVENTS FOR THE ACCELERATION OFDIELS-ALDER REACTION RATES"]}]}],"canonical_facts":{"dc:creator":["Στεφανίδης, Ιωάννης"],"dc:date":["1986"],"dc:description":["BASED ON A RELATION BETWEEN REACTIONS RATE AND ACTIVITY COEFFICIENTS (Γ) AND, ON A COMPUTING METHOD OF ACTIVITY COEFFICIENTS (NAMED UNIFAC), SOLVENTS EFFECTS WERE STUDIED ON 2 DIELS-ALDER REACTIONS RATE AND GENERAL CONCLUSIONS CAME OUT. THESE CONCLUSIONS WERE PROVED AND EXTENDED TO 9 DIELS-ALDER REACTIONS WITH LITERATURE EXPERIMENTAL DATA. THE CONCLUSIONS ARE LISTED AS FOLLOWING: - THE RATE OF THE DIELS-ALDER REACTIONS INCREASES AS MUCH AS THE VAN DER WAALS SURFACE AREA (AW) DECREASES, AND AT THE SAME TIME, THE VAN DER WAALS VOLUME (VW) OF THE SOLVENT MOLECULE INCREASES. - THE RATE OF THE TWO REACTIONS IS MAINLY AFFECTED FROM THE SURFACE AREA (AW) AND NOT FROM THE SOLVENT MOLECULE VOLUME (VW). - CONSEQUENTLY THE SMALLEST THE SOLVENT MOLECULE IS AND SPHERIC OR COMPACT, THE MOST THE RATE OF THE REACTIONS INCREASES. THE ABOVE MENTIONED CONCLUSIONS ARE DESCRIBED WITH A MATHEMATICAL MODEL, AND THEIR PHYSICAL EXPLANATION HAVE BEEN DONE WITH A MECHANISTIC MODEL.","ΜΕ ΒΑΣΗ ΜΙΑ ΣΧΕΣΗ ΜΕΤΑΞΥ ΤΟΥ ΡΥΘΜΟΥ ΑΝΤΙΔΡΑΣΕΩΝ ΚΑΙ ΣΥΝΤΕΛΕΣΤΩΝ ΕΝΕΡΓΟΤΗΤΑΣ (Γ) ΚΑΙ, ΜΙΑΣ ΜΕΘΟΔΟΥ ΥΠΟΛΟΓΙΣΜΟΥ ΣΥΝΤΕΛΕΣΤΩΝ ΕΝΕΡΓΟΤΗΤΑΣ (ΤΗΣ UNIFAC), ΜΕΛΕΤΗΘΗΚΕ Η ΕΠΙΔΡΑΣΗ ΔΙΑΦΟΡΩΝ ΔΙΑΛΥΤΩΝ ΣΤΟ ΡΥΘΜΟ 2 ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΚΑΙ ΕΞΗΧΘΗΣΑΝ ΓΕΝΙΚΑ ΣΥΜΠΕΡΑΣΜΑΤΑ. ΤΑ ΣΥΜΠΕΡΑΣΜΑΤΑ ΑΥΤΑ ΣΤΗ ΣΥΝΕΧΕΙΑ ΤΕΚΜΗΡΙΩΘΗΚΑΝ ΚΑΙ ΓΕΝΙΚΕΥΘΗΚΑΝ ΣΕ 9 ΑΝΤΙΔΡΑΣΕΙΣ DIELS-ALDER ΜΕ ΠΕΙΡΑΜΑΤΙΚΑ ΔΕΔΟΜΕΝΑ ΤΗΣ ΒΙΒΛΙΟΓΡΑΦΙΑΣ. ΤΑ ΣΥΜΠΕΡΑΣΜΑΤΑ ΕΙΝΑΙ: - Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΑΥΞΑΝΟΝΤΑΙΟΣΟ ΠΕΡΙΣΣΟΤΕΡΟ ΕΛΑΤΤΩΝΕΤΑΙ Η ΕΠΙΦΑΝΕΙΑ ΚΑΤΑ VAN DER WAALS (AW) ΚΑΙ ΤΑΥΤΟΧΡΟΝΑ ΑΥΞΑΝΕΤΑΙ Ο ΟΓΚΟΣ ΚΑΤΑ VAN DER WAALS (VW) ΤΟΥ ΜΟΡΙΟΥ ΤΟΥ ΔΙΑΛΥΤΗ. - Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΕΠΗΡΕΑΖΕΤΑΙ ΚΥΡΙΩΣ ΑΠΟ ΤΗΝ ΕΠΙΦΑΝΕΙΑ (AW) ΚΑΙ ΟΧΙ ΑΠΟ ΤΟΝ ΟΓΚΟ (VW) ΤΟΥ ΜΟΡΙΟΥ ΤΟΥ ΔΙΑΛΥΤΗ. - ΟΣΟ ΛΟΙΠΟΝ ΠΙΟ ΜΙΚΡΟ ΕΙΝΑΙ ΤΟ ΜΟΡΙΟ ΤΟΥ ΔΙΑΛΥΤΗ ΚΑΙ ΠΙΟ ΣΦΑΙΡΙΚΟ 'Η ΣΥΜΠΑΓΕΣ, ΤΟΣΟ ΠΕΡΙΣΣΟΤΕΡΟ ΑΥΞΑΝΕΤΑΙ Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ. ΤΑ ΑΝΩΤΕΡΩ ΣΥΜΠΕΡΑΣΜΑΤΑ ΠΕΡΙΓΡΑΦΟΝΤΑΙ ΥΠΟ ΜΟΡΦΗ ΜΑΘΗΜΑΤΙΚΟΥ ΜΟΝΤΕΛΟΥ, ΚΑΙ Η ΦΥΣΙΚΗ ΤΟΥΣ ΕΡΜΗΝΕΙΑ ΤΕΛΟΣ, ΔΙΔΕΤΑΙ ΜΕ ΤΗ ΒΟΗΘΕΙΑ ΜΗΧΑΝΙΣΤΙΚΟΥ ΜΟΝΤΕΛΟΥ."],"dc:identifier":["10.12681/eadd/0298","http://hdl.handle.net/10442/hedi/0298"],"dc:language":["gre"],"dc:publisher":["National Technical University of Athens (NTUA)","Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)"],"dc:subject":["ΑΝΤΙΔΡΑΣΕΙΣ DIELS-ALDER Υ DIELS-ALDER REACTIONS LIQUID PHASE","ΕΠΙΤΑΧΥΝΣΗ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΜΕ ΔΙΑΛΥΤΕΣ","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Χημικού Μηχανικού","Engineering and Technology","Chemical Engineering"],"dc:title":["ΜΕΘΟΔΟΣ ΣΥΝΘΕΣΗΣ Η/ΚΑΙ ΕΠΙΛΟΓΗΣ ΑΡΙΣΤΩΝ ΔΙΑΛΥΤΩΝ ΠΡΟΣ ΕΠΙΤΑΧΥΝΣΗ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER","SYNTHESIS OR/AND SELECTION METHOD OF OPTIMIZED SOLVENTS FOR THE ACCELERATION OFDIELS-ALDER REACTION RATES"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:11Z"}