{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/83426"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/83426","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Influence of Soluble Surface-Active Organic Material on Droplet Activation","abstract":"Both theoretical and experimental approaches also show that despite the a depression, S$\\sb{\\rm c}$ of a particle that contains SDS is always higher than that of a pure NaCl particle with the same dry size. The degree of this deviation increases with increasing SDS% in the mixtures, indicating an increase in hydrophobicity with increasing SDS% in the initially dry particles. The lowering of Raoult effect due to the large molecular weight of SDS is attributable to this trend. It appears that in the atmosphere, only those particles that contain soluble surfactants, whose molecular weight is comparable to (NH$\\sb4)\\sb2$SO$\\sb4$ and meanwhile are very surface active, can achieve low S$\\sb{\\rm c}$ comparable to that of (NH$\\sb4)\\sb2$SO$\\sb4$ particles.","abstract_html":"Both theoretical and experimental approaches also show that despite the a depression, S$\\sb{\\rm c}$ of a particle that contains SDS is always higher than that of a pure NaCl particle with the same dry size. The degree of this deviation increases with increasing SDS% in the mixtures, indicating an increase in hydrophobicity with increasing SDS% in the initially dry particles. The lowering of Raoult effect due to the large molecular weight of SDS is attributable to this trend. It appears that in the atmosphere, only those particles that contain soluble surfactants, whose molecular weight is comparable to (NH$\\sb4)\\sb2$SO$\\sb4$ and meanwhile are very surface active, can achieve low S$\\sb{\\rm c}$ comparable to that of (NH$\\sb4)\\sb2$SO$\\sb4$ particles.","abstract_has_math":true,"creators":["Li, Zhidong"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Civl and Environmental Engineering","degree_department":null,"school":null,"contributors":["Rood, Mark J."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T21:04:49Z","date_published":"2015-09-25T21:04:49Z","updated_at":"2026-07-22T22:26:21Z","subjects":["Physics, Atmospheric Science"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI9717301"],"render_values":[{"text":"(MiAaPQ)AAI9717301","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/83426","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Rood, Mark J."]},{"key":"dc:creator","label":"Author","values":["Li, Zhidong"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T21:04:49Z","10000-01-01","1997"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civl and Environmental Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Physics, Atmospheric Science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/83426","(MiAaPQ)AAI9717301"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Both theoretical and experimental approaches also show that despite the a depression, S$\\sb{\\rm c}$ of a particle that contains SDS is always higher than that of a pure NaCl particle with the same dry size. The degree of this deviation increases with increasing SDS% in the mixtures, indicating an increase in hydrophobicity with increasing SDS% in the initially dry particles. The lowering of Raoult effect due to the large molecular weight of SDS is attributable to this trend. It appears that in the atmosphere, only those particles that contain soluble surfactants, whose molecular weight is comparable to (NH$\\sb4)\\sb2$SO$\\sb4$ and meanwhile are very surface active, can achieve low S$\\sb{\\rm c}$ comparable to that of (NH$\\sb4)\\sb2$SO$\\sb4$ particles.","Made available in DSpace on 2015-09-25T21:04:49Z (GMT). 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The degree of this deviation increases with increasing SDS% in the mixtures, indicating an increase in hydrophobicity with increasing SDS% in the initially dry particles. The lowering of Raoult effect due to the large molecular weight of SDS is attributable to this trend. It appears that in the atmosphere, only those particles that contain soluble surfactants, whose molecular weight is comparable to (NH$\\sb4)\\sb2$SO$\\sb4$ and meanwhile are very surface active, can achieve low S$\\sb{\\rm c}$ comparable to that of (NH$\\sb4)\\sb2$SO$\\sb4$ particles.","Made available in DSpace on 2015-09-25T21:04:49Z (GMT). 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