TY - JOUR

T1 - AFM imaging and nanoindentation of polymer of intrinsic microporosity PIM-1

AU - Polak-Kraśna , Kate

AU - Fuhrhop, Carlos

AU - Rochat, Sebastian

AU - Burrows, Andrew

AU - Georgiadis, Anthimos

AU - Bowen, Chris

AU - Mays, Tim

PY - 2017/9/14

Y1 - 2017/9/14

N2 - Polymers of intrinsic microporosity (PIMs) have promising gas adsorption properties for potential applications such as incorporation into high-pressure hydrogen storage tanks in an effort to increase the storage capacity or decrease the operating pressure. Such applications require detailed mechanical characterisation and determination of the structure-properties relationships to enable optimisation of the interface between the polymer and the tank. In this study, we show that Atomic Force Microscopy (AFM) nanoindentation can be used to determine the elastic modulus of cast PIM-1 films and that this property is depth-dependent. Average values of elastic modulus obtained experimentally were 1.87 GPa and are compared with elastic tensile modulus and storage tensile modulus obtained in previous studies. In addition, Scanning Electron Microscopy (SEM) and AFM imaging was performed to investigate the surface structure of the cast PIM-1 film, which has been shown to be highly granular.

AB - Polymers of intrinsic microporosity (PIMs) have promising gas adsorption properties for potential applications such as incorporation into high-pressure hydrogen storage tanks in an effort to increase the storage capacity or decrease the operating pressure. Such applications require detailed mechanical characterisation and determination of the structure-properties relationships to enable optimisation of the interface between the polymer and the tank. In this study, we show that Atomic Force Microscopy (AFM) nanoindentation can be used to determine the elastic modulus of cast PIM-1 films and that this property is depth-dependent. Average values of elastic modulus obtained experimentally were 1.87 GPa and are compared with elastic tensile modulus and storage tensile modulus obtained in previous studies. In addition, Scanning Electron Microscopy (SEM) and AFM imaging was performed to investigate the surface structure of the cast PIM-1 film, which has been shown to be highly granular.

KW - Engineering

KW - Hydrogen storage

KW - Mechanical characterization

KW - AFM nanoindentation

KW - Polymer of intrinsic microporosity

KW - PIM-1

KW - Polymer of intrinsic microporosity

KW - PIM-1

KW - Hydrogen storage

KW - Mechanical characterisation

KW - AFM nanoindentation

UR - http://www.sciencedirect.com/science/article/pii/S0360319917314702

U2 - 10.1016/j.ijhydene.2017.04.081

DO - 10.1016/j.ijhydene.2017.04.081

M3 - Journal articles

VL - 42

SP - 23915

EP - 23919

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 37

ER -