Studies on rheological, thermal, and morphological properties of methylcellulose gel in aqueous medium
The rheological, morphological, and thermal behavior of aqueous methylcellulose (MC) gels was investigated by optical microscope, dynamic mechanical analyzer (DMA), and differential scanning calorimeter. The double crossover between the storage modulus and loss modulus during the frequency scan in D...
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| Veröffentlicht in: | Polymer engineering and science 2019-10, Vol.59 (10), p.2024-2031 |
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| container_title | Polymer engineering and science |
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| creator | Singh, Ratan Pal Kundu, Patit Paban |
| description | The rheological, morphological, and thermal behavior of aqueous methylcellulose (MC) gels was investigated by optical microscope, dynamic mechanical analyzer (DMA), and differential scanning calorimeter. The double crossover between the storage modulus and loss modulus during the frequency scan in DMA suggests the transition from gel to sol state. These gel networks are comprised of bead‐rod structures, which is visible under the optical microscope. Furthermore, the degelation mechanism of gels comprises of the thermodynamic viable bead burst phenomenon. The reheated samples of MC under dynamic compression show partial irreversibility of the MC aqueous system, indicating the possible presence of weakly coupled random coils and helix. The phenomenon of turbidity of MC aqueous gels is discussed with the help of a large bead model, in which the small‐sized beads present in aqueous solution collide with each other to form large beads. POLYM. ENG. SCI., 59:2024–2031, 2019. © 2019 Society of Plastics Engineers |
| doi_str_mv | 10.1002/pen.25202 |
| format | Article |
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The double crossover between the storage modulus and loss modulus during the frequency scan in DMA suggests the transition from gel to sol state. These gel networks are comprised of bead‐rod structures, which is visible under the optical microscope. Furthermore, the degelation mechanism of gels comprises of the thermodynamic viable bead burst phenomenon. The reheated samples of MC under dynamic compression show partial irreversibility of the MC aqueous system, indicating the possible presence of weakly coupled random coils and helix. The phenomenon of turbidity of MC aqueous gels is discussed with the help of a large bead model, in which the small‐sized beads present in aqueous solution collide with each other to form large beads. POLYM. ENG. 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The double crossover between the storage modulus and loss modulus during the frequency scan in DMA suggests the transition from gel to sol state. These gel networks are comprised of bead‐rod structures, which is visible under the optical microscope. Furthermore, the degelation mechanism of gels comprises of the thermodynamic viable bead burst phenomenon. The reheated samples of MC under dynamic compression show partial irreversibility of the MC aqueous system, indicating the possible presence of weakly coupled random coils and helix. The phenomenon of turbidity of MC aqueous gels is discussed with the help of a large bead model, in which the small‐sized beads present in aqueous solution collide with each other to form large beads. POLYM. ENG. SCI., 59:2024–2031, 2019. © 2019 Society of Plastics Engineers</description><subject>Analysis</subject><subject>Aqueous solutions</subject><subject>Beads</subject><subject>Coils</subject><subject>Gels</subject><subject>Loss modulus</subject><subject>Methyl cellulose</subject><subject>Morphology</subject><subject>Optical microscopes</subject><subject>Polymers</subject><subject>Rheological properties</subject><subject>Rheology</subject><subject>Sol-gel processes</subject><subject>Storage modulus</subject><subject>Thermodynamic properties</subject><subject>Thermodynamics</subject><subject>Transportation networks</subject><subject>Turbidity</subject><issn>0032-3888</issn><issn>1548-2634</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><recordid>eNp1kl1rFDEUhoNYcG298B8EvBI623zN12UpVQtFpa3XIZM5M5OSScYkg-6_N-0qurASOAnnPO_Je_Ei9JaSLSWEXSzgtqxkhL1AG1qKpmAVFy_RhhDOCt40zSv0OsZHklleths03Ke1NxCxdzhM4K0fjVb2HKcJwvz0UK7Hsw_L9GeGl-AXCOlZNeAZ0rSzGqxdrY-AR7DYOKy-r-DXmMe9WeczdDIoG-HN7_sUfftw_XD1qbj98vHm6vK20CUlrGio7glXPa0H2grCet41NYVB0KoTUFPBWKN1pzqueM05q0GXoqxpywXolgA_Re_2e7PHbCAm-ejX4PKXknFCKlISWv-lRmVBGjf4FJSeTdTysiKiaSvKaKaKI9QIDoKy3sFgcvuA3x7h8-lhNvqo4P2BIDMJfqZRrTHKm_u7Q_b8H7Zbo3EQc4lmnFLcS46t1sHHGGCQSzCzCjtJiXwKisxBkc9ByezFnv2R_e3-D8qv15_3il_u67xl</recordid><startdate>201910</startdate><enddate>201910</enddate><creator>Singh, Ratan Pal</creator><creator>Kundu, Patit Paban</creator><general>John Wiley & Sons, Inc</general><general>Society of Plastics Engineers, Inc</general><general>Blackwell Publishing Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>XI7</scope><scope>ISR</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-3010-2951</orcidid></search><sort><creationdate>201910</creationdate><title>Studies on rheological, thermal, and morphological properties of methylcellulose gel in aqueous medium</title><author>Singh, Ratan Pal ; Kundu, Patit Paban</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5102-81cd03ad17f19402d3b871ef416b4e714228ccbab3a373327ec54571934ec90e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Analysis</topic><topic>Aqueous solutions</topic><topic>Beads</topic><topic>Coils</topic><topic>Gels</topic><topic>Loss modulus</topic><topic>Methyl cellulose</topic><topic>Morphology</topic><topic>Optical microscopes</topic><topic>Polymers</topic><topic>Rheological properties</topic><topic>Rheology</topic><topic>Sol-gel processes</topic><topic>Storage modulus</topic><topic>Thermodynamic properties</topic><topic>Thermodynamics</topic><topic>Transportation networks</topic><topic>Turbidity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Singh, Ratan Pal</creatorcontrib><creatorcontrib>Kundu, Patit Paban</creatorcontrib><collection>CrossRef</collection><collection>Gale Business: Insights</collection><collection>Business Insights: Essentials</collection><collection>Gale In Context: Science</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Polymer engineering and science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Singh, Ratan Pal</au><au>Kundu, Patit Paban</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Studies on rheological, thermal, and morphological properties of methylcellulose gel in aqueous medium</atitle><jtitle>Polymer engineering and science</jtitle><date>2019-10</date><risdate>2019</risdate><volume>59</volume><issue>10</issue><spage>2024</spage><epage>2031</epage><pages>2024-2031</pages><issn>0032-3888</issn><eissn>1548-2634</eissn><abstract>The rheological, morphological, and thermal behavior of aqueous methylcellulose (MC) gels was investigated by optical microscope, dynamic mechanical analyzer (DMA), and differential scanning calorimeter. The double crossover between the storage modulus and loss modulus during the frequency scan in DMA suggests the transition from gel to sol state. These gel networks are comprised of bead‐rod structures, which is visible under the optical microscope. Furthermore, the degelation mechanism of gels comprises of the thermodynamic viable bead burst phenomenon. The reheated samples of MC under dynamic compression show partial irreversibility of the MC aqueous system, indicating the possible presence of weakly coupled random coils and helix. The phenomenon of turbidity of MC aqueous gels is discussed with the help of a large bead model, in which the small‐sized beads present in aqueous solution collide with each other to form large beads. POLYM. ENG. 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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Analysis Aqueous solutions Beads Coils Gels Loss modulus Methyl cellulose Morphology Optical microscopes Polymers Rheological properties Rheology Sol-gel processes Storage modulus Thermodynamic properties Thermodynamics Transportation networks Turbidity |
| title | Studies on rheological, thermal, and morphological properties of methylcellulose gel in aqueous medium |
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