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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Macromolecular avenues for the creation of bio-inspired hierarchically structured surfaces
 Wang, Yu-Min ; Pop-Georgievski, Ognen (advisor) ; Kostka, Libor (referee) ; Sedláček, Ondřej (referee)
Biomedical applications often rely on surface adherent architectures such as polymer brushes to prevent adverse nonspecific interactions between materials used in biomedicine and contacting biological fluids. Commonly, "grafting-to" (GT) and "grafting-from" (GF) methods are used to attain the polymer brush architecture on various surfaces. This study investigates the grafting density and antifouling effectiveness of poly[N-(2-hydroxypropyl) methacrylamide] (poly(HPMA)) brushes synthesized via reversible addition-fragmentation chain-transfer (RAFT) polymerization, employing both GT and GF techniques. To determine the molar masses of solution-born and GF poly(HPMA), size exclusion chromatography (SEC) equipped with multiple angle laser light scattering (MALS) and atomic force microscopy (AFM)-based single-molecule force spectroscopy (SMFS) were combined and thoroughly used. Furthermore, the impact of solvent effects on polymer brush propagation kinetics during the concomitant surface-initiated- (SI-) RAFT process between surface and solution was investigated. Experimental findings revealed discrepancies between GF and solution-born poly(HPMA) chains. Notably, solvent composition influenced both the propagation rate and the inferred grafting density of surface-grafted poly(HPMA) due to variations in...
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See also: similar author names
1 Wang, YIjia
1 Wang, Yajing
1 Wang, Yanyi
1 Wang, Yao
1 Wang, Yining
1 Wang, Yuanpeng
1 Wang, Yue
1 Wang, Yuehan
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