Effects of Microphase Separation and Density–Density Correlations in Amorphous Polymer Films
The topology of density fluctuations on the surfaces of amorphous thin films prepared from solutions of some flexible-chain polymers has been studied based on electron microscopy data on submicron and micron scales. It is shown that the microphase-separation effects in the films become stronger with...
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| Veröffentlicht in: | Physics of the solid state 2021-01, Vol.63 (1), p.154-159 |
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| creator | Novikov, D. V. |
| description | The topology of density fluctuations on the surfaces of amorphous thin films prepared from solutions of some flexible-chain polymers has been studied based on electron microscopy data on submicron and micron scales. It is shown that the microphase-separation effects in the films become stronger with an increase in the initial solution concentrations due to self-organization of macromolecular aggregates (clusters): anisotropy, long-range order, and correlation length ξ of density fluctuations increase. The self-organization is completed with formation of an infinite cluster of particles with a periodically inhomogeneous density, which occupies ~30% of the film surface. The density–density correlation function of this cluster on the ~ξ scale is universal and independent of the polymer composition and molecular weight. |
| doi_str_mv | 10.1134/S1063783421010169 |
| format | Article |
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V.</creator><creatorcontrib>Novikov, D. V.</creatorcontrib><description>The topology of density fluctuations on the surfaces of amorphous thin films prepared from solutions of some flexible-chain polymers has been studied based on electron microscopy data on submicron and micron scales. It is shown that the microphase-separation effects in the films become stronger with an increase in the initial solution concentrations due to self-organization of macromolecular aggregates (clusters): anisotropy, long-range order, and correlation length ξ of density fluctuations increase. The self-organization is completed with formation of an infinite cluster of particles with a periodically inhomogeneous density, which occupies ~30% of the film surface. The density–density correlation function of this cluster on the ~ξ scale is universal and independent of the polymer composition and molecular weight.</description><identifier>ISSN: 1063-7834</identifier><identifier>EISSN: 1090-6460</identifier><identifier>DOI: 10.1134/S1063783421010169</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Anisotropy ; Clusters ; Correlation ; Density ; Long range order ; Physics ; Physics and Astronomy ; Polymer films ; Polymers ; Separation ; Solid State Physics ; Surface Physics and Thin Films ; Thin films ; Topology</subject><ispartof>Physics of the solid state, 2021-01, Vol.63 (1), p.154-159</ispartof><rights>Pleiades Publishing, Ltd. 2021. ISSN 1063-7834, Physics of the Solid State, 2021, Vol. 63, No. 1, pp. 154–159. © Pleiades Publishing, Ltd., 2021. 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The density–density correlation function of this cluster on the ~ξ scale is universal and independent of the polymer composition and molecular weight.</description><subject>Anisotropy</subject><subject>Clusters</subject><subject>Correlation</subject><subject>Density</subject><subject>Long range order</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Polymer films</subject><subject>Polymers</subject><subject>Separation</subject><subject>Solid State Physics</subject><subject>Surface Physics and Thin Films</subject><subject>Thin films</subject><subject>Topology</subject><issn>1063-7834</issn><issn>1090-6460</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kc1KxDAQgIsouP48gLeAJw_VSdMm7XFZ1x9QFFevlrSdrJG2qUkL7s138A19ErNWEBGZwwyZ75uETBAcUDimlMUnCwqciZTFEQUfPNsIJhQyCHnMYXNdcxau-9vBjnPPAJTSJJsEj3OlsOwdMYpc69Ka7kk6JAvspJW9Ni2RbUVOsXW6X328vX9XZGasxfqLcES3ZNoY2z2ZwZFbU68atORM143bC7aUrB3uf-fd4OFsfj-7CK9uzi9n06uwZGnWh1QqEJksACOaJgiIPGZQiCitklJlcSoplmkUVQJAyUIoFJxVoiolUlUIxnaDw3FuZ83LgK7Pn81gW39lHsUppyLmMXjqeKSWssZct8r0VpY-Kmx0aVpU2p9PeQICkizlXjj6JXimx9d-KQfn8svF3W-Wjqz_ROcsqryzupF2lVPI1zvK_-zIO9HoOM-2S7Q_z_5f-gSX_pOs</recordid><startdate>20210101</startdate><enddate>20210101</enddate><creator>Novikov, D. 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V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-1af079ab0e2185e0ee6430b728d5cf948a1ec822d700fab7fe763d7dcae1fb733</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Anisotropy</topic><topic>Clusters</topic><topic>Correlation</topic><topic>Density</topic><topic>Long range order</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Polymer films</topic><topic>Polymers</topic><topic>Separation</topic><topic>Solid State Physics</topic><topic>Surface Physics and Thin Films</topic><topic>Thin films</topic><topic>Topology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Novikov, D. V.</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Physics of the solid state</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Novikov, D. V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Microphase Separation and Density–Density Correlations in Amorphous Polymer Films</atitle><jtitle>Physics of the solid state</jtitle><stitle>Phys. Solid State</stitle><date>2021-01-01</date><risdate>2021</risdate><volume>63</volume><issue>1</issue><spage>154</spage><epage>159</epage><pages>154-159</pages><issn>1063-7834</issn><eissn>1090-6460</eissn><abstract>The topology of density fluctuations on the surfaces of amorphous thin films prepared from solutions of some flexible-chain polymers has been studied based on electron microscopy data on submicron and micron scales. It is shown that the microphase-separation effects in the films become stronger with an increase in the initial solution concentrations due to self-organization of macromolecular aggregates (clusters): anisotropy, long-range order, and correlation length ξ of density fluctuations increase. The self-organization is completed with formation of an infinite cluster of particles with a periodically inhomogeneous density, which occupies ~30% of the film surface. The density–density correlation function of this cluster on the ~ξ scale is universal and independent of the polymer composition and molecular weight.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1063783421010169</doi><tpages>6</tpages></addata></record> |
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| subjects | Anisotropy Clusters Correlation Density Long range order Physics Physics and Astronomy Polymer films Polymers Separation Solid State Physics Surface Physics and Thin Films Thin films Topology |
| title | Effects of Microphase Separation and Density–Density Correlations in Amorphous Polymer Films |
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