{"corpus_id":207082603,"paper_sha":"5a4ad1087503cfa58e506eefcf2f9e5f972dbfd9","doi":"10.1021/ja302894k","arxiv_id":null,"pmid":22537278,"pmcid":null,"mag_id":2328954302,"dblp_id":null,"acl_id":null,"title":"Metal-catalyzed transesterification for healing and assembling of thermosets.","year":2012,"publication_date":"2012-04-30","venue":"Journal of the American Chemical Society","journal":{"name":"Journal of the American Chemical Society","pages":"\n          7664-7\n        ","volume":"134 18"},"journal_issn":null,"journal_title":null,"publication_types":["JournalArticle"],"pubmed_pub_types":["Journal Article"],"s2_fields_of_study":["Medicine","Materials Science","Chemistry","Engineering"],"reference_count":58,"citation_count":964,"influential_citation_count":9,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":5,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Catalytic control of bond exchange reactions enables healing of cross-linked polymer materials under a wide range of conditions. The healing capability at high temperatures is demonstrated for epoxy-acid and epoxy-anhydride thermoset networks in the presence of transesterification catalysts. At lower temperatures, the exchange reactions are very sluggish, and the materials have properties of classical epoxy thermosets. Studies of model molecules confirmed that the healing kinetics is controlled by the transesterification reaction rate. The possibility of varying the catalyst concentration brings control and flexibility of welding and assembling of epoxy thermosets that do not exist for thermoplastics.","claims":[{"public_id":"cl_395341e2e4774d1b84e034506bd9e41d","status":"active","text":"At lower temperatures, exchange reactions are very sluggish and the materials behave like classical epoxy thermosets.","confidence":0.93,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_395341e2e4774d1b84e034506bd9e41d"},{"public_id":"cl_11488cf2c0391a793a1db898e12e19ef","status":"active","text":"Healing kinetics is controlled by the transesterification reaction rate, as confirmed by studies of model molecules.","confidence":0.95,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous 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