{"id":2095,"date":"2018-02-07T16:02:56","date_gmt":"2018-02-07T13:02:56","guid":{"rendered":"http:\/\/polymerjournal.kiev.ua\/en\/?page_id=2095"},"modified":"2018-02-07T16:02:56","modified_gmt":"2018-02-07T13:02:56","slug":"2014-4-9","status":"publish","type":"page","link":"http:\/\/polymerjournal.kiev.ua\/en\/2014-4-9\/","title":{"rendered":"2014 (4) 9"},"content":{"rendered":"<p><strong>Thermal kinetic parameters of the pyrolisys of diisocyanates blocked with dimethylglioxime<\/strong><\/p>\n<p><strong><em>\u00a0<\/em><\/strong><\/p>\n<p><strong><em>A.V. Hubina, T.V. Dm<\/em><\/strong><strong><em>\u0443<\/em><\/strong><strong><em>trieva, V.I. Bortnitsky, O.V. Komlyakova<\/em><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Institute of Macromolecular Chemistry NAS of Ukraine<\/p>\n<p>48, Kharkivske shose, Kyiv,02160, Ukraine<\/p>\n<p>&nbsp;<\/p>\n<p>Polym. J., 2014, <strong>36<\/strong>, no. 4: 401-405.<\/p>\n<p>&nbsp;<\/p>\n<p>Section: Structure and properties.<\/p>\n<p>&nbsp;<\/p>\n<p>Language: Russian.<\/p>\n<p>&nbsp;<\/p>\n<p>Abstract:<\/p>\n<p><em>Via the method of pyrolitic mass-spectrometry the thermal properties of dimethylglioxime blocked diisocyanates were investigated and thermal kinetic parameters of their thermal destruction were calculated. Pyrolysis of HMDIb and TDIb is a one-stage process of urethane group thermal decomposition, which results in formation of both the diisocyanate and the blocking agent. The last is confirmed by the mass-spectra of the pyrolysis products. These TDIb and HMDIb are charachterized with deblocking temperature of 125 <\/em><em>\u0438<\/em><em> 145 \u00b0<\/em><em>\u0421<\/em><em>, respectively. The thermal deblocking process is the first order reaction both for TDIb and HMDIb, which is charachtarized (calculated via Coats-Redfern method) with activation energy <\/em>\u00bb<em> 250 <\/em><em>\u043a\u0414\u0436<\/em><em>\/<\/em><em>\u043c\u043e\u043b\u044c<\/em><em> and preexponential factor 8,5 <\/em><em>\u0441<\/em><em>-1<\/em><em>. Thermal kinetic data calculated according to Coats-Redfern are confirmed by oned obtained by Broido method.<\/em><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>Keywords:<\/strong> blocked isocyanates, dimethylglyoxime, thermal kinetics, pyrolitic mass-spectrometry.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u041b\u0438\u0442\u0435\u0440\u0430\u0442\u0443\u0440\u0430<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>1. Delebecq E., Pascault J.-P., Boutevin B., Gana- chaud F. \/\/ Chemical Reviews. \u2013 2013. \u2013 V. 113. \u2013 P. 80 \u2013 118.<br \/>\n2. \u041f\u0430\u0442. \u21165998539 \u0421\u0428\u0410, \u041c\u041f\u041a \u0421 08 J 3\/00. \/ Water-dispersible blocked isocyanate composition and water-base paint composition and water-base adhesive composition using same\/ Morishima; Takeshi , Itoh; Shogo Konishi; Shin -\u041e\u043f\u0443\u0431\u043b. 07.12.1999.<br \/>\n3. \u0413\u043e\u043d\u0447\u0430\u0440\u043e\u0432\u0430 \u041b.\u0413., \u0428\u0432\u0430\u0440\u0446 \u0410.\u0413., \u0410\u043d\u0434\u0440\u0435\u0435\u0432\u0430 B.C., \u0421\u0430\u0444\u0440\u043e\u043d\u043e\u0432\u0430 \u041b.\u0412. \/\/ \u041a\u0430\u0443\u0447\u0443\u043a \u0438 \u0440\u0435\u0437\u0438\u043d\u0430. &#8211; 1982. &#8211; \u21166. &#8211; \u0421. 8-9.<br \/>\n4. Douglas A. Wicks, Zeno W. Wicks Jr. Blocked isocyanates III: Part A: Mechanisms and Chemistry. Progress in Organic Coatings. \u2013 1999. \u2013 36, Iss. 3. \u2013 P. 148\u2013172.<br \/>\n5. Douglas A. Wicks, Zeno W. Wicks Jr. \/\/ Progress in Organic Coatings. &#8211; 2001. &#8211; Vol. 43. &#8211; P. 131\u2013140.<br \/>\n6. \u0413\u0443\u0431\u0438\u043d\u0430 \u0410.\u0412., \u0414\u043c\u0438\u0442\u0440\u0438\u0435\u0432\u0430 \u0422.\u0412., \u0411\u043e\u0440\u0442\u043d\u0438\u0446\u043a\u0438\u0439 \u0412.\u0418. \/\/ \u041f\u043e\u043b\u0438\u043c\u0435\u0440. \u0436\u0443\u0440\u043d. \u2013 2014. \u2013 36, \u2116 3. \u2013 C. 257-261.<br \/>\n7. \u0412\u0430\u0442\u0443\u043b\u0435\u0432 \u0412.\u041d., \u041b\u0430\u043f\u0442\u0438\u0439 \u0421.\u0412. \u0418\u043d\u0444\u0440\u0430\u043a\u0440\u0430\u0441\u043d\u044b\u0435 \u0441\u043f\u0435\u043a\u0442\u0440\u044b \u0438 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u043f\u043e\u043b\u0438\u0443\u0440\u0435\u0442\u0430\u043d\u043e\u0432. &#8211; \u041a\u0438\u0435\u0432: \u041d\u0430\u0443\u043a. \u0434\u0443\u043c\u043a\u0430, 1987. \u2013 187 \u0441.<br \/>\n8. \u0414\u0436.\u0425. \u0421\u0430\u0443\u043d\u0434\u0435\u0440\u0441, \u041a.\u041a. \u0424\u0440\u0438\u0448. \u0425\u0438\u043c\u0438\u044f \u043f\u043e\u043b\u0438\u0443\u0440\u0435\u0442\u0430\u043d\u043e\u0432. &#8211; \u041c.: \u0425\u0438\u043c\u0438\u044f, 1968. &#8211; 471 \u0441.<br \/>\n9. \u0412\u0443\u043b\u044c\u0444\u0441\u043e\u043d \u041d.\u0421., \u0417\u0430\u0438\u043a\u0438\u043d \u0412.\u0413., \u041c\u0438\u043a\u0430\u044f \u0410.\u0418. \u041c\u0430\u0441\u0441-\u0441\u043f\u0435\u043a\u0442\u0440\u043e\u043c\u0435\u0442\u0440\u0438\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439. &#8211; \u041c.: \u0425\u0438\u043c\u0438\u044f, 1986. \u2013 313 \u0441.<br \/>\n10. \u0425\u043c\u0435\u043b\u044c\u043d\u0438\u0446\u043a\u0438\u0439 \u0420.\u0410., \u041b\u0443\u043a\u0430\u0448\u0435\u043d\u043a\u043e \u0418.\u041c., \u0411\u0440\u043e\u0434\u0441\u043a\u0438\u0439 \u0415.\u0421. \u041f\u0438\u0440\u043e\u043b\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043c\u0430\u0441\u0441-\u0441\u043f\u0435\u043a\u0442\u0440\u043e\u043c\u0435\u0442\u0440\u0438\u044f \u0432\u044b\u0441\u043e\u043a\u043e\u043c\u043e\u043b\u0435-\u043a\u0443\u043b\u044f\u0440\u043d\u044b\u0445 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439. \u2013 \u041c.: \u0425\u0438\u043c\u0438\u044f, 1980. \u2013 280 \u0441.<br \/>\n11. \u0423\u044d\u043d\u0434\u043b\u0430\u043d\u0434\u0442 \u0423. \u0422\u0435\u0440\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043c\u0435\u0442\u043e\u0434\u044b \u0430\u043d\u0430\u043b\u0438\u0437\u0430. \u2013 \u041c.: \u041c\u0438\u0440, 1978. \u2013 264 \u0441.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Thermal kinetic parameters of the pyrolisys of diisocyanates blocked with dimethylglioxime \u00a0 A.V. Hubina, T.V. Dm\u0443trieva, V.I. Bortnitsky, O.V. Komlyakova &nbsp; Institute of Macromolecular Chemistry NAS of Ukraine 48, Kharkivske shose, Kyiv,02160, Ukraine &nbsp; Polym. J., 2014, 36, no. 4: 401-405. &nbsp; Section: Structure and properties. &nbsp; Language: Russian. &nbsp; Abstract: Via the method of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"acf":[],"_links":{"self":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/2095"}],"collection":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/comments?post=2095"}],"version-history":[{"count":1,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/2095\/revisions"}],"predecessor-version":[{"id":2096,"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/2095\/revisions\/2096"}],"wp:attachment":[{"href":"http:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/media?parent=2095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}