Free-rotation dimensions of some polyurethane chains
The ratio of the unperturbed mean-square end-to-end distance to the molecular weight in the random-coil limit, (〈 R 2〉 0, f / M) ∝, in the freerotation approximation was calculated for chains of linear polyurethanes PUR-D k prepared from 4,4′-methylenediphenyl diisocyanates and low-molecular-weight...
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| Veröffentlicht in: | Polymer (Guilford) 1999, Vol.40 (3), p.613-616 |
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| container_title | Polymer (Guilford) |
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| creator | DOSTAL, J SIMEK, L BOHDANECKY, M |
| description | The ratio of the unperturbed mean-square end-to-end distance to the molecular weight in the random-coil limit, (〈
R
2〉
0,
f
/
M)
∝, in the freerotation approximation was calculated for chains of linear polyurethanes PUR-D
k
prepared from 4,4′-methylenediphenyl diisocyanates and low-molecular-weight diols HO(CH
2)
k
OH (
k = 2, 3, 4 and 6). It was found that the experimental values of (〈
R
2〉
0/
M)
∝ estimated in the previous paper are very close to the values of (〈
R
2〉
0.
f
/
M)
∝ calculated under the assumption that the groups of bonds CH
2C
6H
5NH and NHCOOCH
2 can be replaced by rigid virtual bonds. |
| doi_str_mv | 10.1016/S0032-3861(98)00254-7 |
| format | Article |
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R
2〉
0,
f
/
M)
∝, in the freerotation approximation was calculated for chains of linear polyurethanes PUR-D
k
prepared from 4,4′-methylenediphenyl diisocyanates and low-molecular-weight diols HO(CH
2)
k
OH (
k = 2, 3, 4 and 6). It was found that the experimental values of (〈
R
2〉
0/
M)
∝ estimated in the previous paper are very close to the values of (〈
R
2〉
0.
f
/
M)
∝ calculated under the assumption that the groups of bonds CH
2C
6H
5NH and NHCOOCH
2 can be replaced by rigid virtual bonds.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/S0032-3861(98)00254-7</identifier><identifier>CODEN: POLMAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Exact sciences and technology ; Free-rotation dimensions ; Organic polymers ; Physicochemistry of polymers ; Polyurethane chains ; Properties and characterization ; Solution and gel properties ; Steric factor σ</subject><ispartof>Polymer (Guilford), 1999, Vol.40 (3), p.613-616</ispartof><rights>1998</rights><rights>1999 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c367t-3f7b91af5e00fe92b5d1b82ddb2680b55bb6abc7e8548e7c3b90ddb19df5a5473</citedby><cites>FETCH-LOGICAL-c367t-3f7b91af5e00fe92b5d1b82ddb2680b55bb6abc7e8548e7c3b90ddb19df5a5473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0032-3861(98)00254-7$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,4024,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1621430$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>DOSTAL, J</creatorcontrib><creatorcontrib>SIMEK, L</creatorcontrib><creatorcontrib>BOHDANECKY, M</creatorcontrib><title>Free-rotation dimensions of some polyurethane chains</title><title>Polymer (Guilford)</title><description>The ratio of the unperturbed mean-square end-to-end distance to the molecular weight in the random-coil limit, (〈
R
2〉
0,
f
/
M)
∝, in the freerotation approximation was calculated for chains of linear polyurethanes PUR-D
k
prepared from 4,4′-methylenediphenyl diisocyanates and low-molecular-weight diols HO(CH
2)
k
OH (
k = 2, 3, 4 and 6). It was found that the experimental values of (〈
R
2〉
0/
M)
∝ estimated in the previous paper are very close to the values of (〈
R
2〉
0.
f
/
M)
∝ calculated under the assumption that the groups of bonds CH
2C
6H
5NH and NHCOOCH
2 can be replaced by rigid virtual bonds.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Free-rotation dimensions</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polyurethane chains</subject><subject>Properties and characterization</subject><subject>Solution and gel properties</subject><subject>Steric factor σ</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEQxYMoWKsfQdiDiB5W82ezSU4ixapQ8KCeQ5Kd0Mh2U5Ot0G_vri169DQD85v3Zh5C5wTfEEzq21eMGS2ZrMmVktcYU16V4gBNiBSspFSRQzT5RY7RSc4feKRoNUHVPAGUKfamD7ErmrCCLg9dLqIvclxBsY7tdpOgX5oOCrc0ocun6MibNsPZvk7R-_zhbfZULl4en2f3i9KxWvQl88IqYjwHjD0oanlDrKRNY2ktseXc2tpYJ0DySoJwzCo8DIlqPDe8EmyKLne66xQ_N5B7vQrZQdsOp8RN1rRWlVASDyDfgS7FnBN4vU5hZdJWE6zHjPRPRnoMQCupfzLSo8HF3sBkZ1qfTOdC_luuKanYKH-3w2B49itA0tkF6Bw0IYHrdRPDP0bfnyx7Rg</recordid><startdate>1999</startdate><enddate>1999</enddate><creator>DOSTAL, J</creator><creator>SIMEK, L</creator><creator>BOHDANECKY, M</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>1999</creationdate><title>Free-rotation dimensions of some polyurethane chains</title><author>DOSTAL, J ; SIMEK, L ; BOHDANECKY, M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-3f7b91af5e00fe92b5d1b82ddb2680b55bb6abc7e8548e7c3b90ddb19df5a5473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Free-rotation dimensions</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polyurethane chains</topic><topic>Properties and characterization</topic><topic>Solution and gel properties</topic><topic>Steric factor σ</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>DOSTAL, J</creatorcontrib><creatorcontrib>SIMEK, L</creatorcontrib><creatorcontrib>BOHDANECKY, M</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>DOSTAL, J</au><au>SIMEK, L</au><au>BOHDANECKY, M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Free-rotation dimensions of some polyurethane chains</atitle><jtitle>Polymer (Guilford)</jtitle><date>1999</date><risdate>1999</risdate><volume>40</volume><issue>3</issue><spage>613</spage><epage>616</epage><pages>613-616</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><coden>POLMAG</coden><abstract>The ratio of the unperturbed mean-square end-to-end distance to the molecular weight in the random-coil limit, (〈
R
2〉
0,
f
/
M)
∝, in the freerotation approximation was calculated for chains of linear polyurethanes PUR-D
k
prepared from 4,4′-methylenediphenyl diisocyanates and low-molecular-weight diols HO(CH
2)
k
OH (
k = 2, 3, 4 and 6). It was found that the experimental values of (〈
R
2〉
0/
M)
∝ estimated in the previous paper are very close to the values of (〈
R
2〉
0.
f
/
M)
∝ calculated under the assumption that the groups of bonds CH
2C
6H
5NH and NHCOOCH
2 can be replaced by rigid virtual bonds.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0032-3861(98)00254-7</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0032-3861 |
| ispartof | Polymer (Guilford), 1999, Vol.40 (3), p.613-616 |
| issn | 0032-3861 1873-2291 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_26947980 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Exact sciences and technology Free-rotation dimensions Organic polymers Physicochemistry of polymers Polyurethane chains Properties and characterization Solution and gel properties Steric factor σ |
| title | Free-rotation dimensions of some polyurethane chains |
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