An anisotropic immerse precipitation process for the preparation of polymer membranes
We study the immerse precipitation process in a ternary polymer/solvent/non-solvent system by numerically solving the two-dimensional Cahn-Hilliard phase field equation. In particular, we introduce anisotropic mobility, namely the mobility of a polymer varies over different spatial directions, and f...
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| Veröffentlicht in: | Soft matter 2022-02, Vol.18 (7), p.1525-1531 |
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| creator | Qiu, Xuwen Mao, Sheng Yin, Jun Yang, Yantao |
| description | We study the immerse precipitation process in a ternary polymer/solvent/non-solvent system by numerically solving the two-dimensional Cahn-Hilliard phase field equation. In particular, we introduce anisotropic mobility, namely the mobility of a polymer varies over different spatial directions, and focus on the porosity morphology of the obtained polymer membrane. Simulations reveal that as the anisotropy increases in the polymer mobility, the polymer pattern changes from nearly isotropic and random voids to strips parallel to the direction with smaller mobility. The influence of anisotropy quickly saturates. The anisotropic mobility model is also applied to a ternary system mimicking the preparation of a hollow fiber membrane, and shows strong effects on the membrane porosity pattern.
Finger-like patterns generated through anisotropic mobility were compared to chaotic patterns generated through isotropic mobility. |
| doi_str_mv | 10.1039/d1sm01613j |
| format | Article |
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Finger-like patterns generated through anisotropic mobility were compared to chaotic patterns generated through isotropic mobility.</description><identifier>ISSN: 1744-683X</identifier><identifier>EISSN: 1744-6848</identifier><identifier>DOI: 10.1039/d1sm01613j</identifier><identifier>PMID: 35103272</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Anisotropy ; Chemical precipitation ; Hollow fiber membranes ; Membranes ; Mimicry ; Mobility ; Polymers ; Porosity ; Solvents ; Ternary systems</subject><ispartof>Soft matter, 2022-02, Vol.18 (7), p.1525-1531</ispartof><rights>Copyright Royal Society of Chemistry 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c296t-1c96a048b0f3e744200bcebde1b3f8851789381df8b656caccead4aa91ca216b3</cites><orcidid>0000-0001-5065-2769 ; 0000-0002-1937-6812</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/35103272$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Qiu, Xuwen</creatorcontrib><creatorcontrib>Mao, Sheng</creatorcontrib><creatorcontrib>Yin, Jun</creatorcontrib><creatorcontrib>Yang, Yantao</creatorcontrib><title>An anisotropic immerse precipitation process for the preparation of polymer membranes</title><title>Soft matter</title><addtitle>Soft Matter</addtitle><description>We study the immerse precipitation process in a ternary polymer/solvent/non-solvent system by numerically solving the two-dimensional Cahn-Hilliard phase field equation. In particular, we introduce anisotropic mobility, namely the mobility of a polymer varies over different spatial directions, and focus on the porosity morphology of the obtained polymer membrane. Simulations reveal that as the anisotropy increases in the polymer mobility, the polymer pattern changes from nearly isotropic and random voids to strips parallel to the direction with smaller mobility. The influence of anisotropy quickly saturates. The anisotropic mobility model is also applied to a ternary system mimicking the preparation of a hollow fiber membrane, and shows strong effects on the membrane porosity pattern.
Finger-like patterns generated through anisotropic mobility were compared to chaotic patterns generated through isotropic mobility.</description><subject>Anisotropy</subject><subject>Chemical precipitation</subject><subject>Hollow fiber membranes</subject><subject>Membranes</subject><subject>Mimicry</subject><subject>Mobility</subject><subject>Polymers</subject><subject>Porosity</subject><subject>Solvents</subject><subject>Ternary systems</subject><issn>1744-683X</issn><issn>1744-6848</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpdkc9LwzAUx4MoTqcX70rAiwjVpEmz9DjmbyYedOCtJGmKGU1Tk_aw_95snRM8vTy-n_fel28AOMPoBiOS35Y4WIQZJss9cIQnlCaMU76_e5PPETgOYYkQ4RSzQzAiWRxMJ-kRWEwbKBoTXOddaxQ01mofNGy9VqY1neiMa2LnlA4BVs7D7mujtsIPmqtg6-pVHINWW-lFo8MJOKhEHfTpto7B4uH-Y_aUzN8en2fTeaLSnHUJVjkTiHKJKqKj1xQhqbQsNZak4jzDE54TjsuKS5YxJZTSoqRC5FiJFDNJxuBq2BsNfvc6dIU1Qem6jiZcH4qUpZRllDES0ct_6NL1vonu1lSO4nHOInU9UMq7ELyuitYbK_yqwKhYh13c4ffXTdgvEb7Yruyl1eUO_U03AucD4IPaqX-_RX4AszWE0A</recordid><startdate>20220216</startdate><enddate>20220216</enddate><creator>Qiu, Xuwen</creator><creator>Mao, Sheng</creator><creator>Yin, Jun</creator><creator>Yang, Yantao</creator><general>Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-5065-2769</orcidid><orcidid>https://orcid.org/0000-0002-1937-6812</orcidid></search><sort><creationdate>20220216</creationdate><title>An anisotropic immerse precipitation process for the preparation of polymer membranes</title><author>Qiu, Xuwen ; Mao, Sheng ; Yin, Jun ; Yang, Yantao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c296t-1c96a048b0f3e744200bcebde1b3f8851789381df8b656caccead4aa91ca216b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Anisotropy</topic><topic>Chemical precipitation</topic><topic>Hollow fiber membranes</topic><topic>Membranes</topic><topic>Mimicry</topic><topic>Mobility</topic><topic>Polymers</topic><topic>Porosity</topic><topic>Solvents</topic><topic>Ternary systems</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiu, Xuwen</creatorcontrib><creatorcontrib>Mao, Sheng</creatorcontrib><creatorcontrib>Yin, Jun</creatorcontrib><creatorcontrib>Yang, Yantao</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Soft matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiu, Xuwen</au><au>Mao, Sheng</au><au>Yin, Jun</au><au>Yang, Yantao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An anisotropic immerse precipitation process for the preparation of polymer membranes</atitle><jtitle>Soft matter</jtitle><addtitle>Soft Matter</addtitle><date>2022-02-16</date><risdate>2022</risdate><volume>18</volume><issue>7</issue><spage>1525</spage><epage>1531</epage><pages>1525-1531</pages><issn>1744-683X</issn><eissn>1744-6848</eissn><abstract>We study the immerse precipitation process in a ternary polymer/solvent/non-solvent system by numerically solving the two-dimensional Cahn-Hilliard phase field equation. In particular, we introduce anisotropic mobility, namely the mobility of a polymer varies over different spatial directions, and focus on the porosity morphology of the obtained polymer membrane. Simulations reveal that as the anisotropy increases in the polymer mobility, the polymer pattern changes from nearly isotropic and random voids to strips parallel to the direction with smaller mobility. The influence of anisotropy quickly saturates. The anisotropic mobility model is also applied to a ternary system mimicking the preparation of a hollow fiber membrane, and shows strong effects on the membrane porosity pattern.
Finger-like patterns generated through anisotropic mobility were compared to chaotic patterns generated through isotropic mobility.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>35103272</pmid><doi>10.1039/d1sm01613j</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0001-5065-2769</orcidid><orcidid>https://orcid.org/0000-0002-1937-6812</orcidid></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Anisotropy Chemical precipitation Hollow fiber membranes Membranes Mimicry Mobility Polymers Porosity Solvents Ternary systems |
| title | An anisotropic immerse precipitation process for the preparation of polymer membranes |
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