A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass Fractions
A bimodal high density polyethylene (HDPE) has been successfully fractionated by analytical size exclusion chromatography into molar mass fractions with <em>M<sub>w</sub></em>'s ranging from 3.6 kg/mol to 8<sub> </sub>000 kg/mol, an...
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2011-09-01
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| Series: | Medžiagotyra |
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| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/590 |
| _version_ | 1818516148281409536 |
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| author | Andres KRUMME Monika BASIURA Thijs PIJPERS Geert VANDEN POEL Lars Christian HEINZ Robert BRÜLL Vincent B. F. MATHOT |
| author_facet | Andres KRUMME Monika BASIURA Thijs PIJPERS Geert VANDEN POEL Lars Christian HEINZ Robert BRÜLL Vincent B. F. MATHOT |
| author_sort | Andres KRUMME |
| collection | DOAJ |
| description | A bimodal high density polyethylene (HDPE) has been successfully fractionated by analytical size exclusion chromatography into molar mass fractions with <em>M<sub>w</sub></em>'s ranging from 3.6 kg/mol to 8<sub> </sub>000 kg/mol, and subsequently deposited on germanium disks using the Lab Connections Transform method. After removal of the fractions from the disks, having masses in between 10 µg<sub> </sub>-<sub> </sub>150 µg, differential scanning calorimetry has been successful in measuring the (re)crystallization and melting behavior of these fractions. Comparing the crystallization and melting peak temperatures of the fractions with those of narrow molar mass linear polyethylenes points to the HDPE being linear below and short chain branched above 100 kg/mol respectively. This value coincides roughly with the 'split' between the molar mass distributions resulting from the first and the second polymerization reactor - confirming the addition of 1-butene in the second reactor.<p><a href="http://dx.doi.org/10.5755/j01.ms.17.3.590">http://dx.doi.org/10.5755/j01.ms.17.3.590</a></p> |
| first_indexed | 2024-12-11T00:38:15Z |
| format | Article |
| id | doaj.art-fe6830cdce194e03a05079f788c30b7a |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-11T00:38:15Z |
| publishDate | 2011-09-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-fe6830cdce194e03a05079f788c30b7a2022-12-22T01:27:02ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892011-09-0117326026510.5755/j01.ms.17.3.590503A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass FractionsAndres KRUMME0Monika BASIURA1Thijs PIJPERSGeert VANDEN POELLars Christian HEINZRobert BRÜLL2Vincent B. F. MATHOTTallinn University of TechnologyUniversity of Bielsko-BialaDeutsches Kunststoff-InstitutA bimodal high density polyethylene (HDPE) has been successfully fractionated by analytical size exclusion chromatography into molar mass fractions with <em>M<sub>w</sub></em>'s ranging from 3.6 kg/mol to 8<sub> </sub>000 kg/mol, and subsequently deposited on germanium disks using the Lab Connections Transform method. After removal of the fractions from the disks, having masses in between 10 µg<sub> </sub>-<sub> </sub>150 µg, differential scanning calorimetry has been successful in measuring the (re)crystallization and melting behavior of these fractions. Comparing the crystallization and melting peak temperatures of the fractions with those of narrow molar mass linear polyethylenes points to the HDPE being linear below and short chain branched above 100 kg/mol respectively. This value coincides roughly with the 'split' between the molar mass distributions resulting from the first and the second polymerization reactor - confirming the addition of 1-butene in the second reactor.<p><a href="http://dx.doi.org/10.5755/j01.ms.17.3.590">http://dx.doi.org/10.5755/j01.ms.17.3.590</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/590linear polyethylene (LPE)bimodal high-density polyethylene (HDPE) PE100short chain branching (SCB)size exclusion chromatography (SEC)High Performance DSC (HPer DSC)Lab Connections (LC) Transform |
| spellingShingle | Andres KRUMME Monika BASIURA Thijs PIJPERS Geert VANDEN POEL Lars Christian HEINZ Robert BRÜLL Vincent B. F. MATHOT A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass Fractions Medžiagotyra linear polyethylene (LPE) bimodal high-density polyethylene (HDPE) PE100 short chain branching (SCB) size exclusion chromatography (SEC) High Performance DSC (HPer DSC) Lab Connections (LC) Transform |
| title | A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass Fractions |
| title_full | A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass Fractions |
| title_fullStr | A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass Fractions |
| title_full_unstemmed | A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass Fractions |
| title_short | A New Route for Evaluating Short Chain Branching Distribution of High Density Polyethylene by Measuring Crystallizability of Molar Mass Fractions |
| title_sort | new route for evaluating short chain branching distribution of high density polyethylene by measuring crystallizability of molar mass fractions |
| topic | linear polyethylene (LPE) bimodal high-density polyethylene (HDPE) PE100 short chain branching (SCB) size exclusion chromatography (SEC) High Performance DSC (HPer DSC) Lab Connections (LC) Transform |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/590 |
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