From supramolecular to conventional polymers: polyethylene glycol
Increasing the polymerization degree of polyethylene glycol (PEG), HO-(CH 2 CH 2 O-) n H, entails lowering the number of hydroxyl groups per unit volume; therefore, supramolecular polymers are gradually replaced by longer and longer conventional polymers. This paper concerns an estimation of the pol...
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| Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2018-02, Vol.2 (9), p.645-649 |
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| container_title | Physical chemistry chemical physics : PCCP |
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| creator | wiergiel, Jolanta Jad yn, Jan |
| description | Increasing the polymerization degree of polyethylene glycol (PEG), HO-(CH
2
CH
2
O-)
n
H, entails lowering the number of hydroxyl groups per unit volume; therefore, supramolecular polymers are gradually replaced by longer and longer conventional polymers. This paper concerns an estimation of the polymerization degree (
n
) where PEG changes its nature from a supramolecular polymer to a conventional polymer. It was found that that virtual transformation takes place when
n
reaches the value of about 9. The conclusion follows from the different thermal behaviors of the dipolar orientational effects in liquid PEG detected for
n
below and above 9. The result reflects a diametrically different impact of the temperature on the linkages between the monomers in supramolecular and conventional polymers.
The temperature dependences of the dipole moment and orientational entropy of polyethylene glycols, HO-(CH
2
CH
2
O-)
n
H, clearly differentiate the compounds with
n
< 9 and
n
> 9. |
| doi_str_mv | 10.1039/c8cp00346g |
| format | Article |
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2
CH
2
O-)
n
H, entails lowering the number of hydroxyl groups per unit volume; therefore, supramolecular polymers are gradually replaced by longer and longer conventional polymers. This paper concerns an estimation of the polymerization degree (
n
) where PEG changes its nature from a supramolecular polymer to a conventional polymer. It was found that that virtual transformation takes place when
n
reaches the value of about 9. The conclusion follows from the different thermal behaviors of the dipolar orientational effects in liquid PEG detected for
n
below and above 9. The result reflects a diametrically different impact of the temperature on the linkages between the monomers in supramolecular and conventional polymers.
The temperature dependences of the dipole moment and orientational entropy of polyethylene glycols, HO-(CH
2
CH
2
O-)
n
H, clearly differentiate the compounds with
n
< 9 and
n
> 9.</description><identifier>ISSN: 1463-9076</identifier><identifier>EISSN: 1463-9084</identifier><identifier>DOI: 10.1039/c8cp00346g</identifier><identifier>PMID: 29435553</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Hydroxyl groups ; Polyethylene glycol ; Polymerization ; Polymers ; Supramolecular polymers</subject><ispartof>Physical chemistry chemical physics : PCCP, 2018-02, Vol.2 (9), p.645-649</ispartof><rights>Copyright Royal Society of Chemistry 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-78cdd6ab3cd32c5385ec3288c42ef7a5f38fabc844618d315a56073acc1dfc7d3</citedby><cites>FETCH-LOGICAL-c363t-78cdd6ab3cd32c5385ec3288c42ef7a5f38fabc844618d315a56073acc1dfc7d3</cites><orcidid>0000-0002-0278-7965 ; 0000-0001-9240-3330</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29435553$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>wiergiel, Jolanta</creatorcontrib><creatorcontrib>Jad yn, Jan</creatorcontrib><title>From supramolecular to conventional polymers: polyethylene glycol</title><title>Physical chemistry chemical physics : PCCP</title><addtitle>Phys Chem Chem Phys</addtitle><description>Increasing the polymerization degree of polyethylene glycol (PEG), HO-(CH
2
CH
2
O-)
n
H, entails lowering the number of hydroxyl groups per unit volume; therefore, supramolecular polymers are gradually replaced by longer and longer conventional polymers. This paper concerns an estimation of the polymerization degree (
n
) where PEG changes its nature from a supramolecular polymer to a conventional polymer. It was found that that virtual transformation takes place when
n
reaches the value of about 9. The conclusion follows from the different thermal behaviors of the dipolar orientational effects in liquid PEG detected for
n
below and above 9. The result reflects a diametrically different impact of the temperature on the linkages between the monomers in supramolecular and conventional polymers.
The temperature dependences of the dipole moment and orientational entropy of polyethylene glycols, HO-(CH
2
CH
2
O-)
n
H, clearly differentiate the compounds with
n
< 9 and
n
> 9.</description><subject>Hydroxyl groups</subject><subject>Polyethylene glycol</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Supramolecular polymers</subject><issn>1463-9076</issn><issn>1463-9084</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp90U1Lw0AQBuBFFFurF-9KxIsI0d1MNtl4K8FWoaAHPYftZFNbNtm4mwj596YfVvDgaQbmYWDeIeSc0TtGIblHgTWlEEaLAzJkYQR-QkV4uO_jaEBOnFtRShlncEwGQRIC5xyGZDyxpvRcW1tZGq2w1dJ6jfHQVF-qapamktqrje5KZd3DplPNR6dVpbyF7tDoU3JUSO3U2a6OyPvk8S198mcv0-d0PPMRImj8WGCeR3IOmEOAHARXCIEQGAaqiCUvQBRyjiIMIyZyYFzyiMYgEVleYJzDiNxs99bWfLbKNVm5dKi0lpUyrcuC_rqEhZRGPb3-Q1emtf0la8Wo4DxOoFe3W4XWOGdVkdV2WUrbZYxm62CzVKSvm2CnPb7crWznpcr39CfJHlxtgXW4n_5-JqvzojcX_xn4BkG9iLg</recordid><startdate>20180228</startdate><enddate>20180228</enddate><creator>wiergiel, Jolanta</creator><creator>Jad yn, Jan</creator><general>Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-0278-7965</orcidid><orcidid>https://orcid.org/0000-0001-9240-3330</orcidid></search><sort><creationdate>20180228</creationdate><title>From supramolecular to conventional polymers: polyethylene glycol</title><author>wiergiel, Jolanta ; Jad yn, Jan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-78cdd6ab3cd32c5385ec3288c42ef7a5f38fabc844618d315a56073acc1dfc7d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Hydroxyl groups</topic><topic>Polyethylene glycol</topic><topic>Polymerization</topic><topic>Polymers</topic><topic>Supramolecular polymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>wiergiel, Jolanta</creatorcontrib><creatorcontrib>Jad yn, Jan</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Physical chemistry chemical physics : PCCP</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>wiergiel, Jolanta</au><au>Jad yn, Jan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>From supramolecular to conventional polymers: polyethylene glycol</atitle><jtitle>Physical chemistry chemical physics : PCCP</jtitle><addtitle>Phys Chem Chem Phys</addtitle><date>2018-02-28</date><risdate>2018</risdate><volume>2</volume><issue>9</issue><spage>645</spage><epage>649</epage><pages>645-649</pages><issn>1463-9076</issn><eissn>1463-9084</eissn><abstract>Increasing the polymerization degree of polyethylene glycol (PEG), HO-(CH
2
CH
2
O-)
n
H, entails lowering the number of hydroxyl groups per unit volume; therefore, supramolecular polymers are gradually replaced by longer and longer conventional polymers. This paper concerns an estimation of the polymerization degree (
n
) where PEG changes its nature from a supramolecular polymer to a conventional polymer. It was found that that virtual transformation takes place when
n
reaches the value of about 9. The conclusion follows from the different thermal behaviors of the dipolar orientational effects in liquid PEG detected for
n
below and above 9. The result reflects a diametrically different impact of the temperature on the linkages between the monomers in supramolecular and conventional polymers.
The temperature dependences of the dipole moment and orientational entropy of polyethylene glycols, HO-(CH
2
CH
2
O-)
n
H, clearly differentiate the compounds with
n
< 9 and
n
> 9.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>29435553</pmid><doi>10.1039/c8cp00346g</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-0278-7965</orcidid><orcidid>https://orcid.org/0000-0001-9240-3330</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1463-9076 |
| ispartof | Physical chemistry chemical physics : PCCP, 2018-02, Vol.2 (9), p.645-649 |
| issn | 1463-9076 1463-9084 |
| language | eng |
| recordid | cdi_proquest_journals_2010855793 |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Hydroxyl groups Polyethylene glycol Polymerization Polymers Supramolecular polymers |
| title | From supramolecular to conventional polymers: polyethylene glycol |
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