{"id":{"repo_id":"usm","oai_identifier":"oai:aquila.usm.edu:masters_theses-1648"},"canonical_url":"https://search.dev.ndltd.org/etd/usm/oai:aquila.usm.edu:masters_theses-1648","repository":{"repo_id":"usm","name":"University of Southern Mississippi","base_url":"https://aquila.usm.edu/do/oai/"},"display":{"title":"pH-Responsive Polymers for Biosurfaces: An Investigation of Solution Properties and Surface Modifying Performance","abstract":"<p>Gantrez® copolymers are used widely in the personal care industry, but their mechanisms of interaction with dental surfaces are poorly understood. In this study, we determined a number of the solution and polymer properties that control deposition, adsorption and adhesion in Gantrez® polymer aqueous solutions to model dental surfaces. QCM studies specifically showed that polymer adsorption to model hydroxyapatite surfaces occurred only in solutions with polymer concentration above c*. Adsorption and adhesion was greater in solutions of higher pH, where greater charge density along the polymer backbone was expected. For films prepared via spin-coating onto mica surfaces, addition of surfactants to the solution resulted in film surfaces with more regular morphology and surface coverage. Flow-through studies in QCM, however, showed that there was no polymer deposition or adhesion to the silicon surface from solution in the presence or absence of surfactants. The results from these studies provide an expanded database to allow researchers to design formulations to meet specific requirements of deposition and adhesion for personal care applications.</p>","abstract_html":"&lt;p&gt;Gantrez® copolymers are used widely in the personal care industry, but their mechanisms of interaction with dental surfaces are poorly understood. In this study, we determined a number of the solution and polymer properties that control deposition, adsorption and adhesion in Gantrez® polymer aqueous solutions to model dental surfaces. QCM studies specifically showed that polymer adsorption to model hydroxyapatite surfaces occurred only in solutions with polymer concentration above c*. Adsorption and adhesion was greater in solutions of higher pH, where greater charge density along the polymer backbone was expected. For films prepared via spin-coating onto mica surfaces, addition of surfactants to the solution resulted in film surfaces with more regular morphology and surface coverage. Flow-through studies in QCM, however, showed that there was no polymer deposition or adhesion to the silicon surface from solution in the presence or absence of surfactants. The results from these studies provide an expanded database to allow researchers to design formulations to meet specific requirements of deposition and adhesion for personal care applications.&lt;/p&gt;","abstract_has_math":false,"creators":["Wei, Yuhong"],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Masters Thesis","degree_discipline":"Polymers and High Performance Materials","degree_department":null,"school":null,"contributors":["Sarah Morgan"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-05-01T07:00:00Z","date_published":"2012-05-01T07:00:00Z","updated_at":"2026-07-24T05:45:06Z","subjects":["Chemistry","Physical Sciences and Mathematics"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://aquila.usm.edu/masters_theses/573","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Sarah Morgan"]},{"key":"dc:creator","label":"Author","values":["Wei, Yuhong"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2018-11-28T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Polymers and High Performance Materials"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Chemistry","Physical Sciences and Mathematics"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://aquila.usm.edu/masters_theses/573"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["<p>Gantrez® copolymers are used widely in the personal care industry, but their mechanisms of interaction with dental surfaces are poorly understood. In this study, we determined a number of the solution and polymer properties that control deposition, adsorption and adhesion in Gantrez® polymer aqueous solutions to model dental surfaces. QCM studies specifically showed that polymer adsorption to model hydroxyapatite surfaces occurred only in solutions with polymer concentration above c*. Adsorption and adhesion was greater in solutions of higher pH, where greater charge density along the polymer backbone was expected. For films prepared via spin-coating onto mica surfaces, addition of surfactants to the solution resulted in film surfaces with more regular morphology and surface coverage. Flow-through studies in QCM, however, showed that there was no polymer deposition or adhesion to the silicon surface from solution in the presence or absence of surfactants. The results from these studies provide an expanded database to allow researchers to design formulations to meet specific requirements of deposition and adhesion for personal care applications.</p>"]},{"key":"dc:title","label":"Title","values":["pH-Responsive Polymers for Biosurfaces: An Investigation of Solution Properties and Surface Modifying Performance"]}]}],"canonical_facts":{"dc:contributor":["Sarah Morgan"],"dc:creator":["Wei, Yuhong"],"dc:date.available":["2018-11-28T08:00:00Z"],"dc:description.abstract":["<p>Gantrez® copolymers are used widely in the personal care industry, but their mechanisms of interaction with dental surfaces are poorly understood. In this study, we determined a number of the solution and polymer properties that control deposition, adsorption and adhesion in Gantrez® polymer aqueous solutions to model dental surfaces. QCM studies specifically showed that polymer adsorption to model hydroxyapatite surfaces occurred only in solutions with polymer concentration above c*. Adsorption and adhesion was greater in solutions of higher pH, where greater charge density along the polymer backbone was expected. For films prepared via spin-coating onto mica surfaces, addition of surfactants to the solution resulted in film surfaces with more regular morphology and surface coverage. Flow-through studies in QCM, however, showed that there was no polymer deposition or adhesion to the silicon surface from solution in the presence or absence of surfactants. The results from these studies provide an expanded database to allow researchers to design formulations to meet specific requirements of deposition and adhesion for personal care applications.</p>"],"dc:identifier":["https://aquila.usm.edu/masters_theses/573"],"dc:subject":["Chemistry","Physical Sciences and Mathematics"],"dc:title":["pH-Responsive Polymers for Biosurfaces: An Investigation of Solution Properties and Surface Modifying Performance"],"thesis:degree_discipline":["Polymers and High Performance Materials"],"thesis:degree_level":["Masters Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:45:06Z"}