{"id":{"repo_id":"aston","oai_identifier":"oai:publications.aston.ac.uk:11729"},"canonical_url":"https://search.dev.ndltd.org/etd/aston/oai:publications.aston.ac.uk:11729","repository":{"repo_id":"aston","name":"Aston University","base_url":"https://publications.aston.ac.uk/cgi/oai2"},"display":{"title":"PVC stabilisers based on metal carboxylates","abstract":"Hydroperoxides and olefinic unsaturation are formed rapidly in Polyvinyl chloride (PVC) as a consequence of mechanical shearing of the polymer chains during the processing operation. The concentration of these species in the polymer before processing is negligible compared with that produced mechano-chemically during processing. It is considered that shearing of PVC during processing is the main source of chemical impurities in the polymer which lead to instability during subsequent service...","abstract_html":"Hydroperoxides and olefinic unsaturation are formed rapidly in Polyvinyl chloride (PVC) as a consequence of mechanical shearing of the polymer chains during the processing operation. The concentration of these species in the polymer before processing is negligible compared with that produced mechano-chemically during processing. It is considered that shearing of PVC during processing is the main source of chemical impurities in the polymer which lead to instability during subsequent service...","abstract_has_math":false,"creators":["Adeniyi, Jacob Boye"],"institution":"Aston University","degree_name":"Ph.D.","degree_level":"doctoral","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Al-Malaika, Sahar"],"committee_chairs":[],"committee_members":[],"year":1984,"date_issued":"1984","date_published":"1984","updated_at":"2026-07-24T01:01:35Z","subjects":[],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://doi.org/10.48780/publications.aston.ac.uk.00011729","outbound_label":"DOI","outbound_source":"dc:identifier.doi"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Al-Malaika, Sahar"]},{"key":"dc:creator","label":"Author","values":["Adeniyi, Jacob Boye"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1984"]},{"key":"dc:date.issued","label":"Date","values":["1984"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Chemical Engineering & Applied Chemistry"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["Aston University"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://publications.aston.ac.uk/id/eprint/11729/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["doctoral"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["Ph.D."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.doi","label":"DOI","values":["10.48780/publications.aston.ac.uk.00011729"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://publications.aston.ac.uk/id/eprint/11729/1/J.B_ADENIYI_1984_reduced.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Hydroperoxides and olefinic unsaturation are formed rapidly in Polyvinyl chloride (PVC) as a consequence of mechanical shearing of the polymer chains during the processing operation. The concentration of these species in the polymer before processing is negligible compared with that produced mechano-chemically during processing. It is considered that shearing of PVC during processing is the main source of chemical impurities in the polymer which lead to instability during subsequent service..."]},{"key":"dc:format","label":"Dc Format","values":["text"]},{"key":"dc:title","label":"Title","values":["PVC stabilisers based on metal carboxylates"]}]}],"canonical_facts":{"dc:contributor.advisor":["Al-Malaika, Sahar"],"dc:creator":["Adeniyi, Jacob Boye"],"dc:date":["1984"],"dc:date.issued":["1984"],"dc:description.abstract":["Hydroperoxides and olefinic unsaturation are formed rapidly in Polyvinyl chloride (PVC) as a consequence of mechanical shearing of the polymer chains during the processing operation. The concentration of these species in the polymer before processing is negligible compared with that produced mechano-chemically during processing. It is considered that shearing of PVC during processing is the main source of chemical impurities in the polymer which lead to instability during subsequent service..."],"dc:format":["text"],"dc:identifier.doi":["10.48780/publications.aston.ac.uk.00011729"],"dc:identifier.uri":["https://publications.aston.ac.uk/id/eprint/11729/1/J.B_ADENIYI_1984_reduced.pdf"],"dc:publisher.department":["Chemical Engineering & Applied Chemistry"],"dc:publisher.institution":["Aston University"],"dc:relation.isreferencedby":["https://publications.aston.ac.uk/id/eprint/11729/"],"dc:title":["PVC stabilisers based on metal carboxylates"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["doctoral"],"dc:type.qualificationname":["Ph.D."]},"updated_at":"2026-07-24T01:01:35Z"}