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New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers
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| Zeitschriftentitel: | e-Polymers |
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| Personen und Körperschaften: | , , , |
| In: | e-Polymers, 4, 2004, 1 |
| Format: | E-Article |
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Walter de Gruyter GmbH
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| author_facet |
Vugrinec, Jasminka Kratofil, Ljerka Hrnjak-Murgić, Zlata Jelenčić, Jasenka Vugrinec, Jasminka Kratofil, Ljerka Hrnjak-Murgić, Zlata Jelenčić, Jasenka |
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| author |
Vugrinec, Jasminka Kratofil, Ljerka Hrnjak-Murgić, Zlata Jelenčić, Jasenka |
| spellingShingle |
Vugrinec, Jasminka Kratofil, Ljerka Hrnjak-Murgić, Zlata Jelenčić, Jasenka e-Polymers New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers Polymers and Plastics Physical and Theoretical Chemistry General Chemical Engineering |
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vugrinec, jasminka |
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Vugrinec, Jasminka Kratofil, Ljerka Hrnjak-Murgić, Zlata Jelenčić, Jasenka 1618-7229 2197-4586 Walter de Gruyter GmbH Polymers and Plastics Physical and Theoretical Chemistry General Chemical Engineering http://dx.doi.org/10.1515/epoly.2004.4.1.374 <jats:title>Abstract</jats:title><jats:p> Polymer blends of styrene-acrylonitrile (SAN) and ethylene-propylenediene copolymer (EPDM) were prepared by casting films from chloroform solution. Their compositions were 95/5, 90/10 and 80/20, respectively. To simulate ageing, SAN/EPDM blends were degraded at 140°C for several different time intervals and the degree of degradation was followed by IR spectroscopy and by determination of molar masses. To recover thermally degraded SAN/EPDM blends, <jats:italic>in situ </jats:italic>polymerization by addition of styrene monomer was applied. Characterization of SAN and EPDM, graft copolymer and gel was carried out in order to reveal the polymerization process. Extractions of the polymers were made using solvents in a Soxhlet equipment: SAN in a mixture of acetone/ methanol, EPDM in hexane, graft copolymer in tetrahydrofuran, while the remaining part was considered as gel. Identification of extracted polymers has been conducted by IR spectroscopy. The presence of graft copolymer in the polymerization mixture proved the grafting reaction of polymer radicals. The highest content of graft copolymer was obtained for SAN/EPDM polymer blends that were exposed to thermal treatment for the longest time interval of 90 h.</jats:p> New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers e-Polymers |
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| title |
New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_unstemmed |
New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_full |
New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_fullStr |
New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_full_unstemmed |
New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_short |
New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_sort |
new materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| topic |
Polymers and Plastics Physical and Theoretical Chemistry General Chemical Engineering |
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http://dx.doi.org/10.1515/epoly.2004.4.1.374 |
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2004 |
| physical |
|
| description |
<jats:title>Abstract</jats:title><jats:p> Polymer blends of styrene-acrylonitrile (SAN) and ethylene-propylenediene copolymer (EPDM) were prepared by casting films from chloroform solution. Their compositions were 95/5, 90/10 and 80/20, respectively. To simulate ageing, SAN/EPDM blends were degraded at 140°C for several different time intervals and the degree of degradation was followed by IR spectroscopy and by determination of molar masses. To recover thermally degraded SAN/EPDM blends, <jats:italic>in situ </jats:italic>polymerization by addition of styrene monomer was applied. Characterization of SAN and EPDM, graft copolymer and gel was carried out in order to reveal the polymerization process. Extractions of the polymers were made using solvents in a Soxhlet equipment: SAN in a mixture of acetone/ methanol, EPDM in hexane, graft copolymer in tetrahydrofuran, while the remaining part was considered as gel. Identification of extracted polymers has been conducted by IR spectroscopy. The presence of graft copolymer in the polymerization mixture proved the grafting reaction of polymer radicals. The highest content of graft copolymer was obtained for SAN/EPDM polymer blends that were exposed to thermal treatment for the longest time interval of 90 h.</jats:p> |
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| author | Vugrinec, Jasminka, Kratofil, Ljerka, Hrnjak-Murgić, Zlata, Jelenčić, Jasenka |
| author_facet | Vugrinec, Jasminka, Kratofil, Ljerka, Hrnjak-Murgić, Zlata, Jelenčić, Jasenka, Vugrinec, Jasminka, Kratofil, Ljerka, Hrnjak-Murgić, Zlata, Jelenčić, Jasenka |
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| description | <jats:title>Abstract</jats:title><jats:p> Polymer blends of styrene-acrylonitrile (SAN) and ethylene-propylenediene copolymer (EPDM) were prepared by casting films from chloroform solution. Their compositions were 95/5, 90/10 and 80/20, respectively. To simulate ageing, SAN/EPDM blends were degraded at 140°C for several different time intervals and the degree of degradation was followed by IR spectroscopy and by determination of molar masses. To recover thermally degraded SAN/EPDM blends, <jats:italic>in situ </jats:italic>polymerization by addition of styrene monomer was applied. Characterization of SAN and EPDM, graft copolymer and gel was carried out in order to reveal the polymerization process. Extractions of the polymers were made using solvents in a Soxhlet equipment: SAN in a mixture of acetone/ methanol, EPDM in hexane, graft copolymer in tetrahydrofuran, while the remaining part was considered as gel. Identification of extracted polymers has been conducted by IR spectroscopy. The presence of graft copolymer in the polymerization mixture proved the grafting reaction of polymer radicals. The highest content of graft copolymer was obtained for SAN/EPDM polymer blends that were exposed to thermal treatment for the longest time interval of 90 h.</jats:p> |
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| spelling | Vugrinec, Jasminka Kratofil, Ljerka Hrnjak-Murgić, Zlata Jelenčić, Jasenka 1618-7229 2197-4586 Walter de Gruyter GmbH Polymers and Plastics Physical and Theoretical Chemistry General Chemical Engineering http://dx.doi.org/10.1515/epoly.2004.4.1.374 <jats:title>Abstract</jats:title><jats:p> Polymer blends of styrene-acrylonitrile (SAN) and ethylene-propylenediene copolymer (EPDM) were prepared by casting films from chloroform solution. Their compositions were 95/5, 90/10 and 80/20, respectively. To simulate ageing, SAN/EPDM blends were degraded at 140°C for several different time intervals and the degree of degradation was followed by IR spectroscopy and by determination of molar masses. To recover thermally degraded SAN/EPDM blends, <jats:italic>in situ </jats:italic>polymerization by addition of styrene monomer was applied. Characterization of SAN and EPDM, graft copolymer and gel was carried out in order to reveal the polymerization process. Extractions of the polymers were made using solvents in a Soxhlet equipment: SAN in a mixture of acetone/ methanol, EPDM in hexane, graft copolymer in tetrahydrofuran, while the remaining part was considered as gel. Identification of extracted polymers has been conducted by IR spectroscopy. The presence of graft copolymer in the polymerization mixture proved the grafting reaction of polymer radicals. The highest content of graft copolymer was obtained for SAN/EPDM polymer blends that were exposed to thermal treatment for the longest time interval of 90 h.</jats:p> New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers e-Polymers |
| spellingShingle | Vugrinec, Jasminka, Kratofil, Ljerka, Hrnjak-Murgić, Zlata, Jelenčić, Jasenka, e-Polymers, New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers, Polymers and Plastics, Physical and Theoretical Chemistry, General Chemical Engineering |
| title | New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_full | New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_fullStr | New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_full_unstemmed | New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_short | New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_sort | new materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| title_unstemmed | New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers |
| topic | Polymers and Plastics, Physical and Theoretical Chemistry, General Chemical Engineering |
| url | http://dx.doi.org/10.1515/epoly.2004.4.1.374 |