Improving the strength of polyethylene solids by simple controlling of the molecular weight distribution
We prepared model polyethylene (PE) samples that contain the controlled-amounts of the high-molecular-weight component by blending a monodispersed PE into a polydispersed PE, to elucidate the influence of the high-molecular-weight component of a polymer on its mechanical properties. The strength and...
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| Veröffentlicht in: | Polymer (Guilford) 2021-03, Vol.218, p.123526, Article 123526 |
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| container_title | Polymer (Guilford) |
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| creator | Kida, Takumitsu Tanaka, Ryo Hiejima, Yusuke Nitta, Koh-hei Shiono, Takeshi |
| description | We prepared model polyethylene (PE) samples that contain the controlled-amounts of the high-molecular-weight component by blending a monodispersed PE into a polydispersed PE, to elucidate the influence of the high-molecular-weight component of a polymer on its mechanical properties. The strength and strain-hardening modulus were significantly enhanced by the addition of a monodispersed PE of sufficiently high molecular weight, and the critical value of Mw was determined to be ~3.0 × 105. The improved strength and strain-hardening modulus are attributed to higher amounts of inter-cluster links that bridge adjacent lamellar cluster units because these links act as stress transmitters between these units.
[Display omitted]
•Model polyethylene (PE) samples with different shapes of molecular weight distribution were prepared by blending mono- and polydispersed PEs.•The strength and strain-hardening modulus were enhanced by adding a high-molecular-weight component with Mw > 3.0 × 105.•The improvement of tensile properties is attributed to larger amounts of inter-cluster links, which act as stress transmitters between lamellar cluster units. |
| doi_str_mv | 10.1016/j.polymer.2021.123526 |
| format | Article |
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[Display omitted]
•Model polyethylene (PE) samples with different shapes of molecular weight distribution were prepared by blending mono- and polydispersed PEs.•The strength and strain-hardening modulus were enhanced by adding a high-molecular-weight component with Mw > 3.0 × 105.•The improvement of tensile properties is attributed to larger amounts of inter-cluster links, which act as stress transmitters between lamellar cluster units.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/j.polymer.2021.123526</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Clusters ; Mechanical properties ; Molecular weight ; Molecular weight distribution ; Polyethylene ; Polyethylenes ; Polymers ; Strain ; Strain hardening ; Tie molecules ; Transmitters</subject><ispartof>Polymer (Guilford), 2021-03, Vol.218, p.123526, Article 123526</ispartof><rights>2021 Elsevier Ltd</rights><rights>Copyright Elsevier BV Mar 18, 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c403t-48a3a11db25a1d4e9bd2fd7cf8e5c04b57ee9fb1e46b78abfa746455c4fb5023</citedby><cites>FETCH-LOGICAL-c403t-48a3a11db25a1d4e9bd2fd7cf8e5c04b57ee9fb1e46b78abfa746455c4fb5023</cites><orcidid>0000-0002-9494-3004</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.polymer.2021.123526$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Kida, Takumitsu</creatorcontrib><creatorcontrib>Tanaka, Ryo</creatorcontrib><creatorcontrib>Hiejima, Yusuke</creatorcontrib><creatorcontrib>Nitta, Koh-hei</creatorcontrib><creatorcontrib>Shiono, Takeshi</creatorcontrib><title>Improving the strength of polyethylene solids by simple controlling of the molecular weight distribution</title><title>Polymer (Guilford)</title><description>We prepared model polyethylene (PE) samples that contain the controlled-amounts of the high-molecular-weight component by blending a monodispersed PE into a polydispersed PE, to elucidate the influence of the high-molecular-weight component of a polymer on its mechanical properties. The strength and strain-hardening modulus were significantly enhanced by the addition of a monodispersed PE of sufficiently high molecular weight, and the critical value of Mw was determined to be ~3.0 × 105. The improved strength and strain-hardening modulus are attributed to higher amounts of inter-cluster links that bridge adjacent lamellar cluster units because these links act as stress transmitters between these units.
[Display omitted]
•Model polyethylene (PE) samples with different shapes of molecular weight distribution were prepared by blending mono- and polydispersed PEs.•The strength and strain-hardening modulus were enhanced by adding a high-molecular-weight component with Mw > 3.0 × 105.•The improvement of tensile properties is attributed to larger amounts of inter-cluster links, which act as stress transmitters between lamellar cluster units.</description><subject>Clusters</subject><subject>Mechanical properties</subject><subject>Molecular weight</subject><subject>Molecular weight distribution</subject><subject>Polyethylene</subject><subject>Polyethylenes</subject><subject>Polymers</subject><subject>Strain</subject><subject>Strain hardening</subject><subject>Tie molecules</subject><subject>Transmitters</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkMtqwzAUREVpoWnaTygIunYqyZIfq1JCH4FAN9kLS76OZWQrlZSU_H1l0n1XdzFz5jKD0CMlK0po8TysDs6eR_ArRhhdUZYLVlyhBa3KPGOsptdoQUjOsrwq6C26C2EghDDB-AL1m_Hg3clMexx7wCF6mPaxx67DcyjE_mxhSoKzpg1YnXEw48EC1m6K3lk7k8k8w6OzoI-28fgHzL6PuDUpz6hjNG66RzddYwM8_N0l2r2_7daf2fbrY7N-3WaakzxmvGryhtJWMdHQlkOtWta1pe4qEJpwJUqAulMUeKHKqlFdU_KCC6F5pwRh-RI9XWJTq-8jhCgHd_RT-iiZIJWoWUmq5BIXl_YuBA-dPHgzNv4sKZHzpnKQf5vKeVN52TRxLxcOUoOTSWrQBiYNrfGgo2yd-SfhF5ONhdo</recordid><startdate>20210318</startdate><enddate>20210318</enddate><creator>Kida, Takumitsu</creator><creator>Tanaka, Ryo</creator><creator>Hiejima, Yusuke</creator><creator>Nitta, Koh-hei</creator><creator>Shiono, Takeshi</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0002-9494-3004</orcidid></search><sort><creationdate>20210318</creationdate><title>Improving the strength of polyethylene solids by simple controlling of the molecular weight distribution</title><author>Kida, Takumitsu ; 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The strength and strain-hardening modulus were significantly enhanced by the addition of a monodispersed PE of sufficiently high molecular weight, and the critical value of Mw was determined to be ~3.0 × 105. The improved strength and strain-hardening modulus are attributed to higher amounts of inter-cluster links that bridge adjacent lamellar cluster units because these links act as stress transmitters between these units.
[Display omitted]
•Model polyethylene (PE) samples with different shapes of molecular weight distribution were prepared by blending mono- and polydispersed PEs.•The strength and strain-hardening modulus were enhanced by adding a high-molecular-weight component with Mw > 3.0 × 105.•The improvement of tensile properties is attributed to larger amounts of inter-cluster links, which act as stress transmitters between lamellar cluster units.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.polymer.2021.123526</doi><orcidid>https://orcid.org/0000-0002-9494-3004</orcidid></addata></record> |
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| issn | 0032-3861 1873-2291 |
| language | eng |
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| subjects | Clusters Mechanical properties Molecular weight Molecular weight distribution Polyethylene Polyethylenes Polymers Strain Strain hardening Tie molecules Transmitters |
| title | Improving the strength of polyethylene solids by simple controlling of the molecular weight distribution |
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