Record ID

UAM3beb9909c3d7439290555768d89a5b73

Author

Katelyn Randazzo Katelyn Randazzo,, Undefined Affiliation

Malgorzata Bartkiewicz Malgorzata Bartkiewicz,, Undefined Affiliation

Bartłomiej Graczykowski Bartłomiej Graczykowski,, jednostki badawczo-dydaktyczne Wydziału Fizyki [nowa struktura organizacyjna] (SNŚ/WyF/JBWF)Szkoła Nauk Ścisłych [nowa struktura organizacyjna] (SNŚ)

Daniele Cangialosi Daniele Cangialosi,, Undefined Affiliation

George Fytas George Fytas,, Undefined Affiliation

Biao Zuo Biao Zuo,, Undefined Affiliation

Rodney D. Priestley Rodney D. Priestley,, Undefined Affiliation

Journal series

Macromolecules, ISSN 0024-9297, e-ISSN 1520-5835

Issue year

2022

ASJC Classification

1604 Inorganic Chemistry; 1605 Organic Chemistry; 2505 Materials Chemistry; 2507 Polymers and Plastics

Abstract in original language

Irreversible adsorption at polymer/substrate interfaces has been reported to influence glassy properties in thin films. However, consideration has yet to be extended to the nanocomposite geometry, wherein a large interfacial area and high processing temperatures afford especially favorable conditions for irreversible adsorption at the polymer/nanoparticle interface. Here, we present an approach for directly measuring the site-specific glassy properties at the polystyrene (PS)-adsorbed layer interface in PS–silica nanocomposites. We achieved this using a stepwise assembly approach to localize fluorescent dyes within the nanocomposite adsorbed layer, subsequently measuring the glass transition temperature (Tg) via fluorescence. We found that PS adsorption within nanocomposites strongly influenced the local Tg. By measuring the thickness of the PS-adsorbed layers atop nanoparticles via transmission electron microscopy, we found a correlation between adsorbed layer Tg and thickness. Our results provide compelling evidence that adsorbed layer formation within polymer nanocomposites can have a profound impact on local interfacial properties.

DOI

DOI:10.1021/acs.macromol.1c01557 Opening in a new tab

Language

eng (en) English

Score (nominal)

140

Score source

journalList

Score

Ministerial score = 140.0, 13-04-2022, ArticleFromJournal

Publication indicators

WoS Citations = 0; Scopus SNIP: 2017 = 1.513; WoS Impact Factor: 2019 (2 years) = 5.918 - 2019 (5 years) =5.654

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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.