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Temperature‐Responsive Polymers: Chemistry, Properties and Applications
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SYSNO ASEP 0491355 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Small‐angle X‐ray and neutron scattering of temperature‐responsive polymers in solutions Author(s) Filippov, Sergey K. (UMCH-V) RID, ORCID, SAI
Hrubý, Martin (UMCH-V) RID, ORCID
Štěpánek, Petr (UMCH-V) RID, ORCIDSource Title Temperature‐Responsive Polymers: Chemistry, Properties and Applications. - Hoboken : John Wiley & Sons Ltd., 2018 / Khutoryanskiy V. V. ; Georgiou T. K. - ISBN 978-1-119-15778-6 Pages s. 175-196 Number of pages 22 s. Number of pages 401 Publication form Print - P Language eng - English Country US - United States Keywords polymer ; thermoresponsive ; SAXS Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects LO1507 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UMCH-V - RVO:61389013 DOI 10.1002/9781119157830.ch7 Annotation The most important feature of small‐angle X‐ray and neutron scattering (SAXS/SANS) methods is that they probe much smaller distances, usually 1‐100 nm, which can analyze different parts of macromolecules or polymeric nanoparticles using a contrast variation method. This chapter provides a brief and simple introduction to small‐angle scattering (SAS) experiment. SANS experiments confirm conclusions obtained for aqueous solutions: macromolecules of pNIPAM evidently shrink with approaching to phase transition. With appropriate copolymerization of pNIPAM with a cross‐linker, another type of nanoparticles could be prepared ‐ nanogel (microgel) nanoparticles. To summarize this brief SAS introduction, the transformation of temperature‐responsive polymer from a coil‐like conformation to a globular aggregate could be easily assessed by SAS techniques. An appealing application field studied by SAS is hybrid nanoparticles where already formed nanoparticles were modified with temperature‐sensitive polymers. The presence of a block with different nature (hydrophilic or purely hydrophobic) should modify the properties of temperature‐sensitive homopolymers. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2019
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