scholarly journals Stretchable gas barrier films achieved by hydrogen‐bond self‐assembly of nano‐brick multilayers

AIChE Journal ◽  
2021 ◽  
Author(s):  
Kaiqiang Shi ◽  
Xiaozhi Xu ◽  
Siyuan Dong ◽  
Biao Li ◽  
Jingbin Han
Keyword(s):  
Hydrogen Bond ◽  
Self Assembly ◽  
Gas Barrier ◽  
Barrier Films

scholarly journals Stretchable gas barrier films achieved by hydrogen-bond self-assembly of nano-brick multilayers

2021 ◽  
Author(s):  
Kaiqiang Shi ◽  
Xiaozhi Xu ◽  
Siyuan Dong ◽  
Biao Li ◽  
Jingbin Han
Keyword(s):  
Hydrogen Bond ◽  
Self Assembly ◽  
Gas Barrier ◽  
Barrier Films

Stretchable gas barrier films achieved by hydrogen-bond self-assembly of nano-brick multilayers

scholarly journals Layer-by-Layer Assembled Nano-Composite Multilayer Gas Barrier Film Manufactured with Stretchable Substrate

2021 ◽  
Vol 11 (13) ◽  
pp. 5794
Author(s):  
Se-Jung Kim ◽  
Tanyoung Kim ◽  
Dongsoo Kim ◽  
Byeong-Kwon Ju
Keyword(s):  
Transmission Rate ◽  
Significant Loss ◽  
Light Transmittance ◽  
Poly Vinyl Alcohol ◽  
Layer By Layer ◽  
Gas Barrier ◽  
Nano Composite ◽  
Barrier Films ◽  
Potential Applications ◽  
Barrier Film

Most gas barrier films produce cracks that lead to a significant loss of gas barrier integrity when strain is applied. In order to fabricate stretchable gas barrier films with low water permeability and high endurance after stretching, we used polydiallydimethylammonium (PDDA) mixed with graphene oxide (GO) and poly (vinyl alcohol) (PVA) mixed with montmorillonite (MMT). These films were manufactured by layer-by-layer assembly on an Ecoflex/polydimethylsiloxane (PDMS) substrate with pre-strain applied. A total of 30 layers of PDDA (GO)/PVA (MMT) coated on the substrate exhibited a low water vapor transmission rate of 2.5 × 10−2 g/m2 day after 100 cycles of stretching (30% strain). In addition, they exhibited a high light transmittance of 86.54%. Thus, the prepared stretchable gas barrier film has potential applications as a barrier film in transparent and stretchable electronic devices.

Cellulose Nanocrystal (CNC) Coatings with Controlled Anisotropy as High-Performance Gas Barrier Films

2018 ◽  
Vol 11 (1) ◽  
pp. 1376-1383 ◽  
Author(s):  
Reaz A. Chowdhury ◽  
Md. Nuruddin ◽  
Caitlyn Clarkson ◽  
Francisco Montes ◽  
John Howarter ◽  
...  
Keyword(s):  
High Performance ◽  
Cellulose Nanocrystal ◽  
Gas Barrier ◽  
Barrier Films

Highly Oriented Gold/Nanoclay–Polymer Nanocomposites for Flexible Gas Barrier Films

2015 ◽  
Vol 7 (8) ◽  
pp. 4778-4783 ◽  
Author(s):  
Eun-Ho Song ◽  
Byung-Hyun Kang ◽  
Tan-Young Kim ◽  
Hyun-Jun Lee ◽  
Young-Wook Park ◽  
...  
Keyword(s):  
Polymer Nanocomposites ◽  
Gas Barrier ◽  
Barrier Films

scholarly journals Crystalline modification of a rare earth nucleating agent for isotactic polypropylene based on its self-assembly

2018 ◽  
Vol 5 (5) ◽  
pp. 180247 ◽  
Author(s):  
Yuanming Zhang ◽  
Tingting Sun ◽  
Wei Jiang ◽  
Guangting Han
Keyword(s):  
Hydrogen Bond ◽  
Rare Earth ◽  
Isotactic Polypropylene ◽  
Self Assembly ◽  
Dendritic Structure ◽  
Nucleating Agent ◽  
The Self ◽  
Structure Evolution ◽  
Crystalline Modification ◽  
Assembly Structure

In this paper, the crystalline modification of a rare earth nucleating agent (WBG) for isotactic polypropylene (PP) based on its supramolecular self-assembly was investigated by differential scanning calorimetry, wide-angle X-ray diffraction and polarized optical microscopy. In addition, the relationship between the self-assembly structure of the nucleating agent and the crystalline structure, as well as the possible reason for the self-assembly behaviour, was further studied. The structure evolution of WBG showed that the self-assembly structure changed from a needle-like structure to a dendritic structure with increase in the content of WBG. When the content of WBG exceeded a critical value (0.4 wt%), it self-assembled into a strip structure. This revealed that the structure evolution of WBG contributed to the K β and the crystallization morphology of PP with different content of WBG. In addition, further studies implied that the behaviour of self-assembly was a liquid–solid transformation of WBG, followed by a liquid–liquid phase separation of molten isotactic PP and WBG. The formation of the self-assembly structure was based on the free molecules by hydrogen bond dissociation while being heated, followed by aggregation into another structure by hydrogen bond association while being cooled. Furthermore, self-assembly behaviour depends largely on the interaction between WBG themselves.

Hydrogen bond-driven columnar self-assembly of electroluminescent D–A–D configured cyanopyridones

2018 ◽  
Vol 6 (27) ◽  
pp. 7385-7399 ◽  
Author(s):  
D. R. Vinayakumara ◽  
Hidayath Ulla ◽  
Sandeep Kumar ◽  
Anup Pandith ◽  
M. N. Satyanarayan ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Self Assembly ◽  
Optoelectronic Properties

Flying bird-shaped cyanopyridone-based mesogens were designed and synthesized; their optoelectronic properties were studied in detail.

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