Grazing-incidence small-angle neutron scattering at high pressure (HP-GISANS): a soft matter feasibility study on grafted brush films

被引：0

作者：

Vagias, Apostolos ^{[1
,2
]}

Manouras, Theodore ^{[3
,4
]}

Buchner, Andreas ^{[2
]}

Gutfreund, Philipp ^{[1
]}

Porcar, Lionel ^{[1
]}

Jacques, Mark ^{[1
]}

Chiappisi, Leonardo ^{[1
]}

Kosbahn, David P. ^{[5
]}

Wolf, Marcell ^{[2
]}

Guasco, Laura ^{[6
,7
]}

Dahint, Reiner ^{[8
]}

Vamvakaki, Maria ^{[3
,4
]}

Mueller-Buschbaum, Peter ^{[5
]}

机构：

[1] Inst Laue Langevin ILL, 71 Ave Martyrs, F-38000 Grenoble, France

[2] Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, Lichtenbergstr 1, D-85748 Munich, Germany

[3] Inst Elect Struct & Laser, Fdn Res & Technol Hellas, Iraklion 70013, Greece

[4] Univ Crete, Dept Mat Sci & Technol, Iraklion 70013, Greece

[5] Tech Univ Munich, TUM Sch Nat Sci, Dept Phys, Chair Funct Mat, James Franck Str 1, D-85748 Garching, Germany

[6] Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany

[7] Heinz Maier Leibnitz Zentrum MLZ, Max Planck Soc Outstat, D-85748 Garching, Germany

[8] Heidelberg Univ, Inst Phys Chem, Appl Phys Chem, Neuenheimer Feld 253, D-69120 Heidelberg, Germany

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2024年 / 57卷

关键词：

high-pressure grazing-incidence neutron scattering; GISANS; interfaces; soft matter; polymer brushes; POLYMER BRUSHES; POLY(N-ISOPROPYLACRYLAMIDE); TRANSITION; BEHAVIOR; BINARY;

D O I：

10.1107/S1600576724009130

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Grazing-incidence small-angle neutron scattering (GISANS) under pressure (HP-GISANS) at the solid (Si)-liquid (D2O) interface is demonstrated for the pressure-induced lateral morphological characterization of the nanostructure in thin (<100 nm) soft matter films. We demonstrate feasibility by investigating a hydrophobic {poly[(2,2,3,3,4,4,5,5-octafluoro)pentyl methacrylate]} (POFPMA)-hydrophilic {poly[2-(dimethylamino)ethyl methacrylate]} (PDMAEMA) brush mixture of strong incompatibility between the homopolymers, anchored on Si, at T = 45 degrees C for two pressures, P = 1 bar and P = 800 bar. Our GISANS results reveal nanostructural rearrangements with increasing P, underlining P-induced effects in tethered polymer brush layers swollen with bulk solvent.

引用

页码：1978 / 1983

页数：6

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