Rheological characterization of solutions and thin films made from amylose-hexadecylammonium chloride inclusion complexes and polyvinyl alcohol
•Characterized solution properties of amylose-lipid salt complexes with PVOH.•Lipid head group dramatically alters solution viscosity with temperature.•Amylose-lipid salt complexes form gels depending on solution pH.•Composite films remain intact and stable to 200°C. The rheological properties of aq...
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| Veröffentlicht in: | Carbohydrate polymers 2017-04, Vol.161, p.140-148 |
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| creator | Hay, William T. Byars, Jeffrey A. Fanta, George F. Selling, Gordon W. |
| description | •Characterized solution properties of amylose-lipid salt complexes with PVOH.•Lipid head group dramatically alters solution viscosity with temperature.•Amylose-lipid salt complexes form gels depending on solution pH.•Composite films remain intact and stable to 200°C.
The rheological properties of aqueous solutions and films made from blends of polyvinyl alcohol (PVOH) and amylose-hexadecylammonium chloride inclusion complexes (Hex-Am) were investigated to better understand the polymer interactions and processing parameters. Aqueous solutions of Hex-Am displayed non-Newtonian shear thinning characteristics, becoming highly viscous at 4.2% solids and forming a strong mechanical gel at 10% solids. Cationic Hex-Am was observed to have dramatically different rheological temperature response profiles from anionic amylose-sodium palmitate inclusion complexes, displaying a precipitous increase in viscosity upon cooling from 95°C to 50°C. Aqueous solution blends of 1:1 PVOH/Hex-Am lack this precipitous increase in viscosity, indicating that PVOH reduces amylose-chain entanglement. Films cast from varying blends of Hex-Am and PVOH were thermostable to 200°C, and displayed decreasing storage modulus with increasing concentrations of PVOH in film blends. Films cast from Hex-Am/PVOH absorb water vapor at lower rates than their constitutive polymers. |
| doi_str_mv | 10.1016/j.carbpol.2017.01.011 |
| format | Article |
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The rheological properties of aqueous solutions and films made from blends of polyvinyl alcohol (PVOH) and amylose-hexadecylammonium chloride inclusion complexes (Hex-Am) were investigated to better understand the polymer interactions and processing parameters. Aqueous solutions of Hex-Am displayed non-Newtonian shear thinning characteristics, becoming highly viscous at 4.2% solids and forming a strong mechanical gel at 10% solids. Cationic Hex-Am was observed to have dramatically different rheological temperature response profiles from anionic amylose-sodium palmitate inclusion complexes, displaying a precipitous increase in viscosity upon cooling from 95°C to 50°C. Aqueous solution blends of 1:1 PVOH/Hex-Am lack this precipitous increase in viscosity, indicating that PVOH reduces amylose-chain entanglement. Films cast from varying blends of Hex-Am and PVOH were thermostable to 200°C, and displayed decreasing storage modulus with increasing concentrations of PVOH in film blends. Films cast from Hex-Am/PVOH absorb water vapor at lower rates than their constitutive polymers.</description><identifier>ISSN: 0144-8617</identifier><identifier>EISSN: 1879-1344</identifier><identifier>DOI: 10.1016/j.carbpol.2017.01.011</identifier><identifier>PMID: 28189221</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Ammonium Chloride - chemistry ; Amylose - chemistry ; Amylose complex ; Composite films ; DMA ; Polyvinyl alcohol ; Polyvinyl Alcohol - chemistry ; Solutions ; Starch rheology ; Viscosity ; Water - chemistry</subject><ispartof>Carbohydrate polymers, 2017-04, Vol.161, p.140-148</ispartof><rights>2017</rights><rights>Published by Elsevier Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c365t-812d57fca6522d82e33e3d4ab87da4fe94e1c5f113d1c34c7b3099a9addceb93</citedby><cites>FETCH-LOGICAL-c365t-812d57fca6522d82e33e3d4ab87da4fe94e1c5f113d1c34c7b3099a9addceb93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.carbpol.2017.01.011$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28189221$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hay, William T.</creatorcontrib><creatorcontrib>Byars, Jeffrey A.</creatorcontrib><creatorcontrib>Fanta, George F.</creatorcontrib><creatorcontrib>Selling, Gordon W.</creatorcontrib><title>Rheological characterization of solutions and thin films made from amylose-hexadecylammonium chloride inclusion complexes and polyvinyl alcohol</title><title>Carbohydrate polymers</title><addtitle>Carbohydr Polym</addtitle><description>•Characterized solution properties of amylose-lipid salt complexes with PVOH.•Lipid head group dramatically alters solution viscosity with temperature.•Amylose-lipid salt complexes form gels depending on solution pH.•Composite films remain intact and stable to 200°C.
The rheological properties of aqueous solutions and films made from blends of polyvinyl alcohol (PVOH) and amylose-hexadecylammonium chloride inclusion complexes (Hex-Am) were investigated to better understand the polymer interactions and processing parameters. Aqueous solutions of Hex-Am displayed non-Newtonian shear thinning characteristics, becoming highly viscous at 4.2% solids and forming a strong mechanical gel at 10% solids. Cationic Hex-Am was observed to have dramatically different rheological temperature response profiles from anionic amylose-sodium palmitate inclusion complexes, displaying a precipitous increase in viscosity upon cooling from 95°C to 50°C. Aqueous solution blends of 1:1 PVOH/Hex-Am lack this precipitous increase in viscosity, indicating that PVOH reduces amylose-chain entanglement. Films cast from varying blends of Hex-Am and PVOH were thermostable to 200°C, and displayed decreasing storage modulus with increasing concentrations of PVOH in film blends. Films cast from Hex-Am/PVOH absorb water vapor at lower rates than their constitutive polymers.</description><subject>Ammonium Chloride - chemistry</subject><subject>Amylose - chemistry</subject><subject>Amylose complex</subject><subject>Composite films</subject><subject>DMA</subject><subject>Polyvinyl alcohol</subject><subject>Polyvinyl Alcohol - chemistry</subject><subject>Solutions</subject><subject>Starch rheology</subject><subject>Viscosity</subject><subject>Water - chemistry</subject><issn>0144-8617</issn><issn>1879-1344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkduKFDEQhoMo7rj6CEpfetNjqtOH9JXI4mFhQZC9D-lKtZ0h6YxJ97LtS_jKZpjR2w0FKYqv_krqZ-wt8D1waD8c9qjjcAxuX3Ho9hxywDO2A9n1JYi6fs52HOq6lC10V-xVSgeeTwv8JbuqJMi-qmDH_vyYKLjw06J2BU46alwo2t96sWEuwlik4NZTngo9m2KZ7FyM1vlUeG2oGGPwhfabC4nKiR5zDTenvQ-zXX0WdCHazNkZ3ZpOkhj80dEjnfXy-7cHO2-u0A7DFNxr9mLULtGby33N7r98vr_5Vt59_3p78-muRNE2SymhMk03om6bqjKyIiFImFoPsjO6HqmvCbAZAYQBFDV2g-B9r3ttDNLQi2v2_ix7jOHXSmlR3iYk5_RMYU0KZNv1UohOZrQ5oxhDSpFGdYzW67gp4OpkhTqoixXqZIXikANy37vLiHXwZP53_dt9Bj6eAcr_fLAUVUJLM5KxkXBRJtgnRvwF8j-iZg</recordid><startdate>20170401</startdate><enddate>20170401</enddate><creator>Hay, William T.</creator><creator>Byars, Jeffrey A.</creator><creator>Fanta, George F.</creator><creator>Selling, Gordon W.</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20170401</creationdate><title>Rheological characterization of solutions and thin films made from amylose-hexadecylammonium chloride inclusion complexes and polyvinyl alcohol</title><author>Hay, William T. ; Byars, Jeffrey A. ; Fanta, George F. ; Selling, Gordon W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-812d57fca6522d82e33e3d4ab87da4fe94e1c5f113d1c34c7b3099a9addceb93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Ammonium Chloride - chemistry</topic><topic>Amylose - chemistry</topic><topic>Amylose complex</topic><topic>Composite films</topic><topic>DMA</topic><topic>Polyvinyl alcohol</topic><topic>Polyvinyl Alcohol - chemistry</topic><topic>Solutions</topic><topic>Starch rheology</topic><topic>Viscosity</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hay, William T.</creatorcontrib><creatorcontrib>Byars, Jeffrey A.</creatorcontrib><creatorcontrib>Fanta, George F.</creatorcontrib><creatorcontrib>Selling, Gordon W.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Carbohydrate polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hay, William T.</au><au>Byars, Jeffrey A.</au><au>Fanta, George F.</au><au>Selling, Gordon W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rheological characterization of solutions and thin films made from amylose-hexadecylammonium chloride inclusion complexes and polyvinyl alcohol</atitle><jtitle>Carbohydrate polymers</jtitle><addtitle>Carbohydr Polym</addtitle><date>2017-04-01</date><risdate>2017</risdate><volume>161</volume><spage>140</spage><epage>148</epage><pages>140-148</pages><issn>0144-8617</issn><eissn>1879-1344</eissn><abstract>•Characterized solution properties of amylose-lipid salt complexes with PVOH.•Lipid head group dramatically alters solution viscosity with temperature.•Amylose-lipid salt complexes form gels depending on solution pH.•Composite films remain intact and stable to 200°C.
The rheological properties of aqueous solutions and films made from blends of polyvinyl alcohol (PVOH) and amylose-hexadecylammonium chloride inclusion complexes (Hex-Am) were investigated to better understand the polymer interactions and processing parameters. Aqueous solutions of Hex-Am displayed non-Newtonian shear thinning characteristics, becoming highly viscous at 4.2% solids and forming a strong mechanical gel at 10% solids. Cationic Hex-Am was observed to have dramatically different rheological temperature response profiles from anionic amylose-sodium palmitate inclusion complexes, displaying a precipitous increase in viscosity upon cooling from 95°C to 50°C. Aqueous solution blends of 1:1 PVOH/Hex-Am lack this precipitous increase in viscosity, indicating that PVOH reduces amylose-chain entanglement. Films cast from varying blends of Hex-Am and PVOH were thermostable to 200°C, and displayed decreasing storage modulus with increasing concentrations of PVOH in film blends. Films cast from Hex-Am/PVOH absorb water vapor at lower rates than their constitutive polymers.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>28189221</pmid><doi>10.1016/j.carbpol.2017.01.011</doi><tpages>9</tpages></addata></record> |
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| ispartof | Carbohydrate polymers, 2017-04, Vol.161, p.140-148 |
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| source | MEDLINE; Access via ScienceDirect (Elsevier) |
| subjects | Ammonium Chloride - chemistry Amylose - chemistry Amylose complex Composite films DMA Polyvinyl alcohol Polyvinyl Alcohol - chemistry Solutions Starch rheology Viscosity Water - chemistry |
| title | Rheological characterization of solutions and thin films made from amylose-hexadecylammonium chloride inclusion complexes and polyvinyl alcohol |
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