{"90201":{"#nid":"90201","#data":{"type":"event","title":"(11-0310) Prof. William Starnes, College of William and Mary","body":[{"value":"\u003Cp\u003EProf. William Starnes, College of William and Mary\n\u003C\/p\u003E\n\u003Cp\u003EWhy a Politically Incorrect Polymer is Degrading: The Thermolysis Mechanism of PVC\n\u003C\/p\u003E\n\u003Cp\u003ESchool Colloquia\n\u003C\/p\u003E\n\u003Cp\u003EPoly(vinyl chloride) (PVC) continues to be one of the world\u00e2\u0080\u0099s most widely used thermoplastics, owing in part to the many studies which have concluded that it is environmentally benign.  However, its inherent thermal instability is greater than that of the other important synthetic polymers and has stimulated an enormous amount of basic research for more than sixty years.  This talk will discuss the current state of our knowledge about the detailed chemical mechanism for the nonoxidative thermal dehydrochlorination of PVC.  Topics to be considered will include the thermally labile structural defects in the polymer; the potential involvement of ionic, concerted quasi-ionic, and free-radical degradation pathways;  the chemistry of autoacceleration;  and the possible intermediacy of cation monoradicals, excited cation diradicals, and kinetically free chlorine atoms.  \n\u003C\/p\u003E\n\u003Cp\u003EFor more information contact \u003Ca href=\u0022mailto:charles.liotta@chemistry.gatech.edu\u0022\u003EProf. Charles Liotta\u003C\/a\u003E (404-894-8222).\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"Prof. William Starnes, College of William and Mary\n\nWhy a Politically Incorrect Polymer is Degrading: The Thermolysis Mechanism of PVC\n\nSchool Colloquia","format":"limited_html"}],"field_summary_sentence":[{"value":"Prof. William Starnes, College of William and Mary"}],"uid":"27275","created_gmt":"2010-08-24 00:00:00","changed_gmt":"2016-10-08 01:47:05","author":"Shirley Tomes","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2011-03-10T15:00:00-05:00","event_time_end":"2011-03-10T16:00:00-05:00","event_time_end_last":"2011-03-10T16:00:00-05:00","gmt_time_start":"2011-03-10 20:00:00","gmt_time_end":"2011-03-10 21:00:00","gmt_time_end_last":"2011-03-10 21:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"http:\/\/wmpeople.wm.edu\/site\/page\/whstar","title":"Dr. William Starnes"}],"groups":[{"id":"85951","name":"School of Chemistry and Biochemistry"}],"categories":[],"keywords":[{"id":"89","name":"chemistry"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cstrong\u003EShirley Tomes\u003C\/strong\u003E\u003Cbr \/\u003EChemistry \u0026amp; Biochemistry\u003Cbr \/\u003E\u003Ca href=\u0022http:\/\/www.gatech.edu\/contact\/index.html?id=st81\u0022\u003EContact Shirley Tomes\u003C\/a\u003E\u003Cbr \/\u003E\u003Cstrong\u003E404-894-0591\u003C\/strong\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}