Molecular composites formed by solutions of a rodlike polymer (PBT) in polyphosphoric acid
Nematic solutions of the rodlike poly(1,4-phenylene-2,6-benzobisthiazole), PBT, in polyphosphoric acid, PPA, have been aligned in a shear flow to form a molecular composite. The tensile creep and recovery behaviour are studied to reveal a solidlike behaviour (no viscous flow) with a substantial Youn...
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| Veröffentlicht in: | Polymer (Guilford) 1989-08, Vol.30 (8), p.1462-1466 |
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| container_title | Polymer (Guilford) |
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| creator | Charlet, A.F. Berry, G.C. |
| description | Nematic solutions of the rodlike poly(1,4-phenylene-2,6-benzobisthiazole), PBT, in polyphosphoric acid, PPA, have been aligned in a shear flow to form a molecular composite. The tensile creep and recovery behaviour are studied to reveal a solidlike behaviour (no viscous flow) with a substantial Young's modulus
E. X-ray diffraction studies show PBT to be aligned in the flow direction, and suggest that PPA oligomers may be oriented orthogonal to the PBT. The latter may reflect specific solvation of PBT by PPA. Values of
E are compared with predictions from composite theory. |
| doi_str_mv | 10.1016/0032-3861(89)90216-4 |
| format | Article |
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E. X-ray diffraction studies show PBT to be aligned in the flow direction, and suggest that PPA oligomers may be oriented orthogonal to the PBT. The latter may reflect specific solvation of PBT by PPA. Values of
E are compared with predictions from composite theory.</description><subject>Applied sciences</subject><subject>creep</subject><subject>Exact sciences and technology</subject><subject>molecular composites</subject><subject>nematic</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymers with particular structures</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>rodlike polymers</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNp9kLtOwzAUhi0EEqXwBgweEGqHgG9xnAUJKm5SEQxlYbEcxxEGJw52gtS3J2mrjgxHR-foO5f_B-AcoyuMML9GiJKECo5nIp_niGCesAMwwSKjCSE5PgSTPXIMTmL8QgiRlLAJ-HjxzujeqQC1r1sfbWcirHyoTQmLNYze9Z31TYS-ggoGXzr7bWDr3bo2Ac7e7lZzaJtNo_30cYhgNVTalqfgqFIumrNdnoL3h_vV4ilZvj4-L26XiaacdQlRlGUi46ioUsYIVUbnGSNDmTOOUEEIxZiJFHFEU0EF5kWpCs6zklGlCkSn4HK7tw3-pzexk7WN2jinGuP7KAeheUoIHkC2BXXwMQZTyTbYWoW1xEiORsrRJTm6JEUuN0ZKNoxd7ParqJWrgmq0jftZPvzF6IjdbDEzaP21JsiorWm0KW0wupOlt__f-QPJqoV4</recordid><startdate>19890801</startdate><enddate>19890801</enddate><creator>Charlet, A.F.</creator><creator>Berry, G.C.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19890801</creationdate><title>Molecular composites formed by solutions of a rodlike polymer (PBT) in polyphosphoric acid</title><author>Charlet, A.F. ; Berry, G.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-2a3478760bf54423aec97420bf94600b223114850603583816bdab667d43aab03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Applied sciences</topic><topic>creep</topic><topic>Exact sciences and technology</topic><topic>molecular composites</topic><topic>nematic</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymers with particular structures</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>rodlike polymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Charlet, A.F.</creatorcontrib><creatorcontrib>Berry, G.C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Charlet, A.F.</au><au>Berry, G.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular composites formed by solutions of a rodlike polymer (PBT) in polyphosphoric acid</atitle><jtitle>Polymer (Guilford)</jtitle><date>1989-08-01</date><risdate>1989</risdate><volume>30</volume><issue>8</issue><spage>1462</spage><epage>1466</epage><pages>1462-1466</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><coden>POLMAG</coden><abstract>Nematic solutions of the rodlike poly(1,4-phenylene-2,6-benzobisthiazole), PBT, in polyphosphoric acid, PPA, have been aligned in a shear flow to form a molecular composite. The tensile creep and recovery behaviour are studied to reveal a solidlike behaviour (no viscous flow) with a substantial Young's modulus
E. X-ray diffraction studies show PBT to be aligned in the flow direction, and suggest that PPA oligomers may be oriented orthogonal to the PBT. The latter may reflect specific solvation of PBT by PPA. Values of
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| ispartof | Polymer (Guilford), 1989-08, Vol.30 (8), p.1462-1466 |
| issn | 0032-3861 1873-2291 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences creep Exact sciences and technology molecular composites nematic Organic polymers Physicochemistry of polymers Polymers with particular structures Preparation, kinetics, thermodynamics, mechanism and catalysts rodlike polymers |
| title | Molecular composites formed by solutions of a rodlike polymer (PBT) in polyphosphoric acid |
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