Ultrathin Molecular-Layer-by-Layer Polyamide Membranes: Insights from Atomistic Molecular Simulations

2016 ◽  
Vol 120 (35) ◽  
pp. 9484-9494 ◽  
Author(s):  
Thilanga P. Liyana-Arachchi ◽  
James F. Sturnfield ◽  
Coray M. Colina
Keyword(s):  
Molecular Layer ◽  
Molecular Simulations ◽  
Layer By Layer ◽  
Polyamide Membranes

Tailoring interlayer structure of molecular layer-by-layer assembled polyamide membranes for high separation performance

2015 ◽  
Vol 356 ◽  
pp. 659-667 ◽  
Author(s):  
Joung-Eun Gu ◽  
Jong Suk Lee ◽  
Sang-Hee Park ◽  
Il Tae Kim ◽  
Edwin P. Chan ◽  
...  
Keyword(s):  
Molecular Layer ◽  
Separation Performance ◽  
Layer By Layer ◽  
Interlayer Structure ◽  
High Separation ◽  
Polyamide Membranes

scholarly journals Thickness-dependent permeance of molecular layer-by-layer polyamide membranes

2021 ◽  
Vol 618 ◽  
pp. 118637
Author(s):  
William D. Mulhearn ◽  
Vladimir P. Oleshko ◽  
Christopher M. Stafford
Keyword(s):  
Molecular Layer ◽  
Layer By Layer ◽  
Polyamide Membranes

Radical-triggered cross-linking for molecular layer deposition of SiAlCOH hybrid thin films

2021 ◽  
Author(s):  
Kristina Ashurbekova ◽  
Karina Ashurbekova ◽  
Iva Saric ◽  
Evgeny Modin ◽  
Mladen Petravic ◽  
...  
Keyword(s):  
Thin Film ◽  
Film Growth ◽  
Molecular Layer ◽  
Thin Film Growth ◽  
Cross Linking ◽  
Layer By Layer ◽  
Molecular Layer Deposition ◽  
Layer Deposition ◽  
Hybrid Thin Films ◽  
Enhanced Stability

We developed a thin film growth with a radical-initiated cross-linking of vinyl groups in a layer-by-layer manner via molecular layer deposition (MLD). The cross-linked film exhibited improved properties like 12% higher density and enhanced stability compared to the non-cross-linked film.

Molecular layer-by-layer assembled forward osmosis membranes

2015 ◽  
Vol 488 ◽  
pp. 111-120 ◽  
Author(s):  
Soon-Bum Kwon ◽  
Jong Suk Lee ◽  
Soon Jin Kwon ◽  
Seong-Taek Yun ◽  
Seockheon Lee ◽  
...  
Keyword(s):  
Molecular Layer ◽  
Forward Osmosis ◽  
Layer By Layer

Soft electronics on asymmetrical porous conducting membranes by molecular layer-by-layer assembly

2018 ◽  
Vol 254 ◽  
pp. 916-925 ◽  
Author(s):  
Hyun Kim ◽  
Tae Sik Eom ◽  
Whirang Cho ◽  
Kyungbae Woo ◽  
Yuran Shon ◽  
...  
Keyword(s):  
Molecular Layer ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Soft Electronics ◽  
Conducting Membranes ◽  
Layer Assembly

Swelling of Ultrathin Molecular Layer-by-Layer Polyamide Water Desalination Membranes

2013 ◽  
Vol 51 (22) ◽  
pp. 1647-1655 ◽  
Author(s):  
Edwin P. Chan ◽  
Allison P. Young ◽  
Jung-Hyun Lee ◽  
Christopher M. Stafford
Keyword(s):  
Molecular Layer ◽  
Water Desalination ◽  
Layer By Layer

Aqueous Degradation of Polyamide Membrane Materials in Halogenated Environments

MRS Advances ◽  
2016 ◽  
Vol 1 (35) ◽  
pp. 2421-2426
Author(s):  
Logan T. Kearney ◽  
John A. Howarter
Keyword(s):  
Photoelectron Spectroscopy ◽  
Interfacial Polymerization ◽  
Morphological Changes ◽  
Molecular Layer ◽  
Layer By Layer ◽  
Quartz Crystals ◽  
Polymeric Surfaces ◽  
Force Microscopy ◽  
Atomic Force ◽  
Polyamide Membrane

ABSTRACTModel polyamide thin films were prepared through a controlled interfacial polymerization route known as molecular layer by layer (mLbL). Films were synthesized directly onto quartz crystals and subjected to halogenated aqueous environments that are known to cause degradation of the amide network. A quartz crystal microbalance (QCM) was used as the detection platform to ascertain mass loss due to degradation in real time. X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) measurements were also performed at various stages of the degradation sequence to elucidate the chemical and morphological changes at the surfaces respectively. Appropriate strategies for accurately comparing material degradation resistance are proposed along with modifications to the crosslinked polyamide chemistry to produce more halogen tolerant polymeric surfaces.

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