Polymers under nanoconfinement: where are we now in understanding local property changes?

CB Roth - Chemical Society Reviews, 2021 - pubs.rsc.org
Polymers are increasingly being used in applications with nanostructured morphologies
where almost all polymer molecules are within a few tens to hundreds of nanometers from …

Mechanical and viscoelastic properties of confined amorphous polymers

BD Vogt - Journal of Polymer Science Part B: Polymer Physics, 2018 - Wiley Online Library
Confinement of polymers to nanoscale dimensions can dramatically impact their physical
properties. Substantial efforts have focused on the glass transition temperature (Tg) of …

Surface functionalization engineering driven crystallization behavior of polyethylene glycol confined in mesoporous silica for shape-stabilized phase change materials

J Wang, M Yang, Y Lu, Z Jin, L Tan, H Gao, S Fan… - Nano Energy, 2016 - Elsevier
Crystallization behaviors of organic phase change materials (PCMs) confined in porous
supports, which are determined by the interactions between PCM molecules and channel …

Determination of glass transition temperatures in bulk and micellar nanoconfined polymers using fluorescent molecular rotors as probes for changes in free volume

S Kim, M Lee, H Chang Kim, YJ Kim, WB Lee… - …, 2023 - ACS Publications
Fluorescent molecular rotors embedded in polymer matrices can probe the local changes in
the dynamics of the polymer matrix (such as the glass transition of polymers near …

Glass transition temperature of polymer nanoparticles under soft and hard confinement

C Zhang, Y Guo, RD Priestley - Macromolecules, 2011 - ACS Publications
When confined to the nanoscale, the glass transition temperature (T g) of polymer films can
deviate substantially from the bulk, ie, the T g-confinement effect. Due to ease of processing …

On the equivalence between the thermodynamic and dynamic measurements of the glass transition in confined polymers

RD Priestley, D Cangialosi, S Napolitano - Journal of non-crystalline solids, 2015 - Elsevier
Understanding why the glass transition temperature (T g) of polymers deviates substantially
from the bulk with nanoscale confinement has been a 20-year mystery. Ever since the …

Characterization of local elastic modulus in confined polymer films via AFM indentation

X Cheng, KW Putz, CD Wood… - Macromolecular rapid …, 2015 - Wiley Online Library
The properties of polymers near an interface are altered relative to their bulk value due both
to chemical interaction and geometric confinement effects. For the past two decades, the …

Fragility is a Key Parameter in Determining the Magnitude of Tg-Confinement Effects in Polymer Films

CM Evans, H Deng, WF Jager, JM Torkelson - Macromolecules, 2013 - ACS Publications
Using fluorescence-based measurements, the effect of confinement on the glass transition
temperature (T g) was investigated in seven polymer systems of single-layer films supported …

Structure–property relationships in polyamide 12/halloysite nanotube nanocomposites

B Lecouvet, JG Gutierrez, M Sclavons… - Polymer Degradation and …, 2011 - Elsevier
Polyamide 12 (PA12) nanocomposites based on halloysite nanotubes (HNTs) were
obtained using a batch internal mixer or a twin-screw mini-compounder. In order to analyze …

Physical aging in ultrathin polystyrene films: Evidence of a gradient in dynamics at the free surface and its connection to the glass transition temperature reductions

JE Pye, KA Rohald, EA Baker, CB Roth - Macromolecules, 2010 - ACS Publications
We have measured the temperature dependence of the physical aging rate β of thick (2430
nm) and thin (29 nm) polystyrene (PS) films supported on silicon using a new streamlined …