Kinetic study of the degradation of a new aromatic polyethersulfone
The degradation of a new thermoplastic polyethersulfone containing more than one SO2 group in the repeating unit was carried out in both dynamic and isothermal heating conditions, under N2 flow and in a static air atmosphere. The experiments indicated that the polymer degraded by initial random chai...
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| Veröffentlicht in: | Polymer engineering and science 2000-05, Vol.40 (5), p.1114-1121 |
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| container_title | Polymer engineering and science |
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| creator | Abate, L. Pappalardo, A. Recca, A. |
| description | The degradation of a new thermoplastic polyethersulfone containing more than one SO2 group in the repeating unit was carried out in both dynamic and isothermal heating conditions, under N2 flow and in a static air atmosphere. The experiments indicated that the polymer degraded by initial random chain scission, followed by branching and crosslinking in an inert atmosphere and complete degradation in an oxidative environment. Apparent activation energy values associated with the first degradation stage were calculated and suggested that the first degradation stage was not affected by the experimental conditions. Results indicated for the investigated polymer a thermal stability higher than those of some previously investigated polyethersulfones containing only one SO2 group in their repeating units. |
| doi_str_mv | 10.1002/pen.11239 |
| format | Article |
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The experiments indicated that the polymer degraded by initial random chain scission, followed by branching and crosslinking in an inert atmosphere and complete degradation in an oxidative environment. Apparent activation energy values associated with the first degradation stage were calculated and suggested that the first degradation stage was not affected by the experimental conditions. 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Results indicated for the investigated polymer a thermal stability higher than those of some previously investigated polyethersulfones containing only one SO2 group in their repeating units.</description><subject>Analysis</subject><subject>Applied sciences</subject><subject>Chemical reactions and properties</subject><subject>Degradation</subject><subject>Equipment and supplies</subject><subject>Exact sciences and technology</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Plastics industry</subject><subject>Polyethersulphones</subject><subject>Thermoplastics</subject><issn>0032-3888</issn><issn>1548-2634</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp10W1rFDEQB_AgCtbTF36DRUQquG2yedjdl-WotfSo4lN9F2azkzN1LzmTXep9e3PeqVQqeREYfjPM8CfkKaNHjNLqeI3-iLGKt_fIAZOiKSvFxX1yQCmvSt40zUPyKKVrmi2X7QGZXziPozNFGqd-UwRbjF-x6HEZoYfRBb8tQeHxpoAYVrCl6zBsMLOYpsEGj4_JAwtDwif7f0Y-vT79OH9TLt6enc9PFqWRlLYlU4oiazvVM4kolIW6trbqhKG16Y0B2ZlOdoypCjquOPSm50KhqQ1tFW_5jLzYzV3H8H3CNOqVSwaHATyGKemqlrytKMvw2T_wOkzR5910xRrZ1LWQGb3aoSUMqJ23YYxglugxwpCvsi6XTxSXqhFyy8s7eH49rpy5yx_e8pmM-GNcwpSSPv_w_hZ9uaMmhpQiWr2ObgVxoxnV21R1TlX_SjXb5_vTIBkYbARvXPrbIATnGc7I8Y7d5K02_5-n351e_h68v8-lvOefDojftKp5LfXV5ZlefLmSrfh8oSn_CSESvbg</recordid><startdate>200005</startdate><enddate>200005</enddate><creator>Abate, L.</creator><creator>Pappalardo, A.</creator><creator>Recca, A.</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley Subscription Services</general><general>Society of Plastics Engineers, Inc</general><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>3V.</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P5Z</scope><scope>P62</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>200005</creationdate><title>Kinetic study of the degradation of a new aromatic polyethersulfone</title><author>Abate, L. ; 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| language | eng |
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| subjects | Analysis Applied sciences Chemical reactions and properties Degradation Equipment and supplies Exact sciences and technology Organic polymers Physicochemistry of polymers Plastics industry Polyethersulphones Thermoplastics |
| title | Kinetic study of the degradation of a new aromatic polyethersulfone |
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