Multilayers of poly(styrene/$\alpha-tert-butoxy-\omega-vinylbenzyl-polyglycidol)$ microspheres with core-shell morphology: characterization by AFM, SIMS and XPS
PBN-AR
Instytucja
Wydział Fizyki i Informatyki Stosowanej (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Colloids and Surfaces. A, Physicochemical and Engineering Aspects
ISSN
0927-7757
EISSN
1873-4359
Wydawca
Elsevier Science BV
Rok publikacji
2016
Numer zeszytu
Strony od-do
200--209
Numer tomu
507
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.7
Autorzy
(liczba autorów: 9)
Pozostali autorzy
+ 8
Słowa kluczowe
EN
SIMS
hydrophilic core-shell particles
emulsion copolymerization
XPS argon gas cluster sputtering
polyglycidol macromonomer
Streszczenia
Język
EN
Treść
The methods of preparation and characterization of core-shell poly(styrene/alpha-tert-butoxy-omega-vinylbenzyl-polyglycidol) particles arranged in colloidal crystals are described. The particles were prepared via emulsifier free emulsion copolymerization of styrene and alpha-tert-butoxy-omega-vinylbenzylpolyglycidol macromonomer in aqueous medium, initiated by potassium persulfate. The individual polymerizations differed in a way of addition of macromonomer to the polymerization mixture. The particles assemblies were characterized by atomic force microscopy, Secondary Ion Mass Spectrometry (SIMS) and X-ray Photoelectron Spectroscopy (XPS). In-depth distribution of chemical states was determined by XPS combined with argon gas cluster ion sputtering (Ar-GCIB). The morphology of microspheres assemblies reflected the composition of the entire particles. It was found that the method of macromonomer addition to the polymerization mixture affects the particles size, surface and overall morphology. The XPS profiles revealed the chemical composition of the particles arranged in multilayers. It was found that distribution of polyglycidol segments at the particles interfacial layer depends on the time and way of addition of macromonomer. The thickest outer layer composed from polystyrene-polyglycidol segments was obtained for particles when macromonomer was added at the beginning of polymerization.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:100669
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