Evidence of intra-chain phase separation in molten short-chain branched polyethylene.
Saved in:
| Title: | Evidence of intra-chain phase separation in molten short-chain branched polyethylene. |
|---|---|
| Authors: | Stadler, F. J.1 fjstadler@jbnu.ac.kr |
| Source: | Express Polymer Letters. 2011, Vol. 5 Issue 4, p327-341. 15p. 1 Diagram, 1 Chart, 8 Graphs. |
| Subjects: | Phase separation method (Engineering), Low density polyethylene, Polymers, Creep (Materials), Rheology |
| Abstract: | Intramolecular phase separation is usually associated with block-copolymers, but the same phenomenon is also obtainable by random-copolymers. In this article, evidence of intramolecular phase separation is reported for a linear octadecene-ethene copolymer, which shows an evolving 'yield point' at a long time and low frequency. This is attributed to a partial phase separation of the long short-chain branches. In creep recovery, this behavior is evident as increasing elastic steady-state creep recovery compliance Je 0. In contrast to 'normal' block-copolymers, this special polymer has an increase in phase separation with temperature, which is caused by the chemical composition and the short chain segments in the side chain domain, leading to a high surface fraction. [ABSTRACT FROM AUTHOR] |
| Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 59668854 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Evidence of intra-chain phase separation in molten short-chain branched polyethylene. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Stadler%2C+F%2E+J%2E%22">Stadler, F. J.</searchLink><relatesTo>1</relatesTo><i> fjstadler@jbnu.ac.kr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Express+Polymer+Letters%22">Express Polymer Letters</searchLink>. 2011, Vol. 5 Issue 4, p327-341. 15p. 1 Diagram, 1 Chart, 8 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Phase+separation+method+%28Engineering%29%22">Phase separation method (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Low+density+polyethylene%22">Low density polyethylene</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Creep+%28Materials%29%22">Creep (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Rheology%22">Rheology</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Intramolecular phase separation is usually associated with block-copolymers, but the same phenomenon is also obtainable by random-copolymers. In this article, evidence of intramolecular phase separation is reported for a linear octadecene-ethene copolymer, which shows an evolving 'yield point' at a long time and low frequency. This is attributed to a partial phase separation of the long short-chain branches. In creep recovery, this behavior is evident as increasing elastic steady-state creep recovery compliance Je 0. In contrast to 'normal' block-copolymers, this special polymer has an increase in phase separation with temperature, which is caused by the chemical composition and the short chain segments in the side chain domain, leading to a high surface fraction. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=59668854 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3144/expresspolymlett.2011.33 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 327 Subjects: – SubjectFull: Phase separation method (Engineering) Type: general – SubjectFull: Low density polyethylene Type: general – SubjectFull: Polymers Type: general – SubjectFull: Creep (Materials) Type: general – SubjectFull: Rheology Type: general Titles: – TitleFull: Evidence of intra-chain phase separation in molten short-chain branched polyethylene. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Stadler, F. J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: 2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 1788618X Numbering: – Type: volume Value: 5 – Type: issue Value: 4 Titles: – TitleFull: Express Polymer Letters Type: main |
| ResultId | 1 |
