Understanding the Mechanisms Involved in Shape Memory Starch: Macromolecular Orientation, Stress Recovery and Molecular Mobility
The effect of a deformation near and above the glass transition on macromolecular orientation, residual stress, and molecular mobility was investigated on amorphous stimuli-responsive starch. The recovery stress, linked to the residual stress in the temporary shape, evolves linearly with the macromo...
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| Veröffentlicht in: | Macromolecules 2011-12, Vol.44 (23), p.9384-9389 |
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| container_issue | 23 |
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| container_title | Macromolecules |
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| creator | Véchambre, Cyril Buléon, Alain Chaunier, Laurent Gauthier, Catherine Lourdin, Denis |
| description | The effect of a deformation near and above the glass transition on macromolecular orientation, residual stress, and molecular mobility was investigated on amorphous stimuli-responsive starch. The recovery stress, linked to the residual stress in the temporary shape, evolves linearly with the macromolecular orientation. Increasing the deformation temperature decreases the residual stress and the macromolecular orientation. This also leads to a higher glass transition temperature induced by a decrease in molecular mobility. The local structures potentially involved in orientation and stress recovery and their behavior during deformation at different temperatures are discussed. |
| doi_str_mv | 10.1021/ma202019v |
| format | Article |
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The recovery stress, linked to the residual stress in the temporary shape, evolves linearly with the macromolecular orientation. Increasing the deformation temperature decreases the residual stress and the macromolecular orientation. This also leads to a higher glass transition temperature induced by a decrease in molecular mobility. 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The local structures potentially involved in orientation and stress recovery and their behavior during deformation at different temperatures are discussed.</description><subject>Applied sciences</subject><subject>Engineering Sciences</subject><subject>Exact sciences and technology</subject><subject>Materials</subject><subject>Natural polymers</subject><subject>Physicochemistry of polymers</subject><subject>Starch and polysaccharides</subject><issn>0024-9297</issn><issn>1520-5835</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNptkEFLxDAQhYMouK4e_Ae5eBCsZpK2pt5E1F3YZUHdc5mmqY20yZLUwt786WZR1ounGWa-94Y3hJwDuwbG4aZHzjiDYjwgE8g4SzIpskMyYYynScGL22NyEsIHYwBZKibka21r7cOAtjb2nQ6tpkutWrQm9IHO7ei6UdfUWPra4ma37J3f0tcBvWrv6BKVd73rtPrs0NOVN9oOOBhnryLjdQj0RSs36qiJJ-hyjy5dZTozbE_JUYNd0Ge_dUrWT49vD7NksXqeP9wvEhSZHJLbNNcy5UrpHNJKNKICLqXIZd0A5KJCkVZN7FUOqhC5YjkrBPCCa6ZlHaNOyeWPb4tdufGmR78tHZpydr8odzMGEqJfNsIfG8OF4HWzFwArd28u92-O7MUPu8GgsGs8WmXCXsAzLkFmxR-HKpQf7tPbmPYfv2_cfImM</recordid><startdate>20111213</startdate><enddate>20111213</enddate><creator>Véchambre, Cyril</creator><creator>Buléon, Alain</creator><creator>Chaunier, Laurent</creator><creator>Gauthier, Catherine</creator><creator>Lourdin, Denis</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0003-0554-8203</orcidid><orcidid>https://orcid.org/0000-0002-1502-9979</orcidid></search><sort><creationdate>20111213</creationdate><title>Understanding the Mechanisms Involved in Shape Memory Starch: Macromolecular Orientation, Stress Recovery and Molecular Mobility</title><author>Véchambre, Cyril ; Buléon, Alain ; Chaunier, Laurent ; Gauthier, Catherine ; Lourdin, Denis</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a358t-746e842cce614b3f3b1288368df1163ba34bfdf1c61c936c060931292e0e8d543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Engineering Sciences</topic><topic>Exact sciences and technology</topic><topic>Materials</topic><topic>Natural polymers</topic><topic>Physicochemistry of polymers</topic><topic>Starch and polysaccharides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Véchambre, Cyril</creatorcontrib><creatorcontrib>Buléon, Alain</creatorcontrib><creatorcontrib>Chaunier, Laurent</creatorcontrib><creatorcontrib>Gauthier, Catherine</creatorcontrib><creatorcontrib>Lourdin, Denis</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Macromolecules</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Véchambre, Cyril</au><au>Buléon, Alain</au><au>Chaunier, Laurent</au><au>Gauthier, Catherine</au><au>Lourdin, Denis</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Understanding the Mechanisms Involved in Shape Memory Starch: Macromolecular Orientation, Stress Recovery and Molecular Mobility</atitle><jtitle>Macromolecules</jtitle><addtitle>Macromolecules</addtitle><date>2011-12-13</date><risdate>2011</risdate><volume>44</volume><issue>23</issue><spage>9384</spage><epage>9389</epage><pages>9384-9389</pages><issn>0024-9297</issn><eissn>1520-5835</eissn><coden>MAMOBX</coden><abstract>The effect of a deformation near and above the glass transition on macromolecular orientation, residual stress, and molecular mobility was investigated on amorphous stimuli-responsive starch. 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| ispartof | Macromolecules, 2011-12, Vol.44 (23), p.9384-9389 |
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| source | American Chemical Society |
| subjects | Applied sciences Engineering Sciences Exact sciences and technology Materials Natural polymers Physicochemistry of polymers Starch and polysaccharides |
| title | Understanding the Mechanisms Involved in Shape Memory Starch: Macromolecular Orientation, Stress Recovery and Molecular Mobility |
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