TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Wagner, Alexandra
A1  - Wagner, Stefanie
A1  - Bredfeldt, Jan-Erik
A1  - Steinbach, Julia
A1  - Mukherjee, Ashutosh
A1  - Kronenberger, Sandra
A1  - Braun, Kai
A1  - Kandelbauer, Andreas
A1  - Mayer, Hermann
A1  - Brecht, Marc
T1  - Chemical imaging of single anisotropic polystyrene/poly (methacrylate) microspheres with complex hierarchical architecture
JF  - Polymers
N2  - Monodisperse polystyrene spheres are functional materials with interesting properties, such as high cohesion strength, strong adsorptivity, and surface reactivity. They have shown a high application value in biomedicine, information engineering, chromatographic fillers, supercapacitor electrode materials, and other fields. To fully understand and tailor particle synthesis, the methods for characterization of their complex 3D morphological features need to be further explored. Here we present a chemical imaging study based on three-dimensional confocal Raman microscopy (3D-CRM), scanning electron microscopy (SEM), focused ion beam (FIB), diffuse reflectance infrared Fourier transform (DRIFT), and nuclear magnetic resonance (NMR) spectroscopy for individual porous swollen polystyrene/poly (glycidyl methacrylate-co-ethylene di-methacrylate) particles. Polystyrene particles were synthesized with different co-existing chemical entities, which could be identified and assigned to distinct regions of the same particle. The porosity was studied by a combination of SEM and FIB. Images of milled particles indicated a comparable porosity on the surface and in the bulk. The combination of standard analytical techniques such as DRIFT and NMR spectroscopies yielded new insights into the inner structure and chemical composition of these particles. This knowledge supports the further development of particle synthesis and the design of new strategies to prepare particles with complex hierarchical architectures.
KW  - anisotropic polymer particles
KW  - hierarchical particles
KW  - chemical imaging
KW  - correlative microscopy
KW  - Raman microscopy
Y1  - 2021
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:rt2-opus4-30956
SN  - 2073-4360
SS  - 2073-4360
U6  - https://doi.org/10.3390/polym13091438
DO  - https://doi.org/10.3390/polym13091438
VL  - 13
IS  - 9
SP  - 1
EP  - 10
S1  - 10
PB  - MDPI
CY  - Basel
ER  -