Preparation and characterization of modified nanosilica/PNIPAm hybrid cryogels
A series of macroporous hybrid cryogels based on poly( N -isopropylacrylamide) (PNIPAm) were synthesized by free radical polymerization in the presence of organically modified nanosilica. To improve the interaction of silica nanoparticles with polymer structure, the silica surface was first treated...
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| Veröffentlicht in: | Polymer bulletin (Berlin, Germany) Germany), 2015-05, Vol.72 (5), p.993-1005 |
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| container_title | Polymer bulletin (Berlin, Germany) |
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| creator | Dogru, Ozen Abdurrahmanoglu, Suzan Kayaman-Apohan, Nilhan |
| description | A series of macroporous hybrid cryogels based on poly(
N
-isopropylacrylamide) (PNIPAm) were synthesized by free radical polymerization in the presence of organically modified nanosilica. To improve the interaction of silica nanoparticles with polymer structure, the silica surface was first treated with 3-methacryloxypropyltrimethoxysilane (MPTMS). Then a series of hybrid cryogels each containing 1 wt.% nanosilica and various amounts of MPTMS (1–4 wt.% to monomer NIPAm) were prepared. The yield of methacrylate modification of the nanosilica surface determined by TGA analysis was 11.2 wt.%. The particle size distribution of modified nanosilica particles was investigated by dynamic light scattering technique (DLS) and the mean particle diameter with respect to number was found as 68 nm. The morphology of cryogels was evaluated by SEM. The improvement in the thermal and mechanical properties using the addition of modified silica nanoparticles was achieved. |
| doi_str_mv | 10.1007/s00289-015-1319-2 |
| format | Article |
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N
-isopropylacrylamide) (PNIPAm) were synthesized by free radical polymerization in the presence of organically modified nanosilica. To improve the interaction of silica nanoparticles with polymer structure, the silica surface was first treated with 3-methacryloxypropyltrimethoxysilane (MPTMS). Then a series of hybrid cryogels each containing 1 wt.% nanosilica and various amounts of MPTMS (1–4 wt.% to monomer NIPAm) were prepared. The yield of methacrylate modification of the nanosilica surface determined by TGA analysis was 11.2 wt.%. The particle size distribution of modified nanosilica particles was investigated by dynamic light scattering technique (DLS) and the mean particle diameter with respect to number was found as 68 nm. The morphology of cryogels was evaluated by SEM. The improvement in the thermal and mechanical properties using the addition of modified silica nanoparticles was achieved.</description><identifier>ISSN: 0170-0839</identifier><identifier>EISSN: 1436-2449</identifier><identifier>DOI: 10.1007/s00289-015-1319-2</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Complex Fluids and Microfluidics ; Equilibrium ; Free radical polymerization ; Free radicals ; Hydrogels ; Investigations ; Mechanical properties ; Morphology ; Nanoparticles ; Organic Chemistry ; Original Paper ; Particle size ; Particle size distribution ; Photon correlation spectroscopy ; Physical Chemistry ; Polyisopropyl acrylamide ; Polymer Sciences ; Polymerization ; Polymers ; Silicon dioxide ; Soft and Granular Matter ; Temperature ; Thermodynamic properties</subject><ispartof>Polymer bulletin (Berlin, Germany), 2015-05, Vol.72 (5), p.993-1005</ispartof><rights>Springer-Verlag Berlin Heidelberg 2015</rights><rights>Springer-Verlag Berlin Heidelberg 2015.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c423t-2ba6f46c981e40d57d374776aa9e3c73dc3710bd7f361eaea345b566437700713</citedby><cites>FETCH-LOGICAL-c423t-2ba6f46c981e40d57d374776aa9e3c73dc3710bd7f361eaea345b566437700713</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00289-015-1319-2$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2917873899?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,21387,27923,27924,33743,41487,42556,43804,51318,64384,64388,72240</link.rule.ids></links><search><creatorcontrib>Dogru, Ozen</creatorcontrib><creatorcontrib>Abdurrahmanoglu, Suzan</creatorcontrib><creatorcontrib>Kayaman-Apohan, Nilhan</creatorcontrib><title>Preparation and characterization of modified nanosilica/PNIPAm hybrid cryogels</title><title>Polymer bulletin (Berlin, Germany)</title><addtitle>Polym. Bull</addtitle><description>A series of macroporous hybrid cryogels based on poly(
N
-isopropylacrylamide) (PNIPAm) were synthesized by free radical polymerization in the presence of organically modified nanosilica. To improve the interaction of silica nanoparticles with polymer structure, the silica surface was first treated with 3-methacryloxypropyltrimethoxysilane (MPTMS). Then a series of hybrid cryogels each containing 1 wt.% nanosilica and various amounts of MPTMS (1–4 wt.% to monomer NIPAm) were prepared. The yield of methacrylate modification of the nanosilica surface determined by TGA analysis was 11.2 wt.%. The particle size distribution of modified nanosilica particles was investigated by dynamic light scattering technique (DLS) and the mean particle diameter with respect to number was found as 68 nm. The morphology of cryogels was evaluated by SEM. The improvement in the thermal and mechanical properties using the addition of modified silica nanoparticles was achieved.</description><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Complex Fluids and Microfluidics</subject><subject>Equilibrium</subject><subject>Free radical polymerization</subject><subject>Free radicals</subject><subject>Hydrogels</subject><subject>Investigations</subject><subject>Mechanical properties</subject><subject>Morphology</subject><subject>Nanoparticles</subject><subject>Organic Chemistry</subject><subject>Original Paper</subject><subject>Particle size</subject><subject>Particle size distribution</subject><subject>Photon correlation spectroscopy</subject><subject>Physical Chemistry</subject><subject>Polyisopropyl acrylamide</subject><subject>Polymer Sciences</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Silicon dioxide</subject><subject>Soft and Granular Matter</subject><subject>Temperature</subject><subject>Thermodynamic properties</subject><issn>0170-0839</issn><issn>1436-2449</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kEFLAzEQhYMoWKs_wNuC59hMkk02x1LUFkrtQc8hm822Ke2mJttD_fWmrODJ0_CG994wH0KPQJ6BEDlJhNBKYQIlBgYK0ys0As4EppyrazQiIAkmFVO36C6lHclaCBih1Tq6o4mm96ErTNcUdpuV7V3038MytMUhNL71rik604Xk996ayXq1WE8PxfZcR59T8Rw2bp_u0U1r9sk9_M4x-nx9-ZjN8fL9bTGbLrHllPWY1ka0XFhVgeOkKWXDJJdSGKMcs5I1lkkgdSNbJsAZZxgv61IIzqTM3wIbo6eh9xjD18mlXu_CKXb5pKYKZCVZpVR2weCyMaQUXauP0R9MPGsg-oJND9h0xqYv2DTNGTpkUvZ2Gxf_mv8P_QDRgG9I</recordid><startdate>20150501</startdate><enddate>20150501</enddate><creator>Dogru, Ozen</creator><creator>Abdurrahmanoglu, Suzan</creator><creator>Kayaman-Apohan, Nilhan</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20150501</creationdate><title>Preparation and characterization of modified nanosilica/PNIPAm hybrid cryogels</title><author>Dogru, Ozen ; Abdurrahmanoglu, Suzan ; Kayaman-Apohan, Nilhan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c423t-2ba6f46c981e40d57d374776aa9e3c73dc3710bd7f361eaea345b566437700713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Complex Fluids and Microfluidics</topic><topic>Equilibrium</topic><topic>Free radical polymerization</topic><topic>Free radicals</topic><topic>Hydrogels</topic><topic>Investigations</topic><topic>Mechanical properties</topic><topic>Morphology</topic><topic>Nanoparticles</topic><topic>Organic Chemistry</topic><topic>Original Paper</topic><topic>Particle size</topic><topic>Particle size distribution</topic><topic>Photon correlation spectroscopy</topic><topic>Physical Chemistry</topic><topic>Polyisopropyl acrylamide</topic><topic>Polymer Sciences</topic><topic>Polymerization</topic><topic>Polymers</topic><topic>Silicon dioxide</topic><topic>Soft and Granular Matter</topic><topic>Temperature</topic><topic>Thermodynamic properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dogru, Ozen</creatorcontrib><creatorcontrib>Abdurrahmanoglu, Suzan</creatorcontrib><creatorcontrib>Kayaman-Apohan, Nilhan</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>Polymer bulletin (Berlin, Germany)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dogru, Ozen</au><au>Abdurrahmanoglu, Suzan</au><au>Kayaman-Apohan, Nilhan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and characterization of modified nanosilica/PNIPAm hybrid cryogels</atitle><jtitle>Polymer bulletin (Berlin, Germany)</jtitle><stitle>Polym. 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N
-isopropylacrylamide) (PNIPAm) were synthesized by free radical polymerization in the presence of organically modified nanosilica. To improve the interaction of silica nanoparticles with polymer structure, the silica surface was first treated with 3-methacryloxypropyltrimethoxysilane (MPTMS). Then a series of hybrid cryogels each containing 1 wt.% nanosilica and various amounts of MPTMS (1–4 wt.% to monomer NIPAm) were prepared. The yield of methacrylate modification of the nanosilica surface determined by TGA analysis was 11.2 wt.%. The particle size distribution of modified nanosilica particles was investigated by dynamic light scattering technique (DLS) and the mean particle diameter with respect to number was found as 68 nm. The morphology of cryogels was evaluated by SEM. The improvement in the thermal and mechanical properties using the addition of modified silica nanoparticles was achieved.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00289-015-1319-2</doi><tpages>13</tpages></addata></record> |
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| subjects | Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Complex Fluids and Microfluidics Equilibrium Free radical polymerization Free radicals Hydrogels Investigations Mechanical properties Morphology Nanoparticles Organic Chemistry Original Paper Particle size Particle size distribution Photon correlation spectroscopy Physical Chemistry Polyisopropyl acrylamide Polymer Sciences Polymerization Polymers Silicon dioxide Soft and Granular Matter Temperature Thermodynamic properties |
| title | Preparation and characterization of modified nanosilica/PNIPAm hybrid cryogels |
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