Simulations of the untying of molecular friction knots between individual polymer strands

2008 ◽  
Vol 128 (9) ◽  
pp. 094901 ◽  
Author(s):  
Serdal Kirmizialtin ◽  
Dmitrii E. Makarov
Keyword(s):  
Molecular Friction ◽  
Individual Polymer

SuFExable Polymers with Helical Structures Derived from Thionyl Tetrafluoride (SOF4)

2019 ◽  
Author(s):  
Suhua Li ◽  
Gencheng Li ◽  
Bing Gao ◽  
Sidharam P. Pujari ◽  
Xiaoyan Chen ◽  
...  
Keyword(s):  
Functional Polymers ◽  
Polymer Chains ◽  
New Materials ◽  
Helical Structures ◽  
Polymer Backbone ◽  
Silyl Ethers ◽  
Helical Polymer ◽  
Key Characteristics ◽  
Post Modification ◽  
Individual Polymer

The first SuFEx click chemistry synthesis of SOF<sub>4</sub>-derived copolymers based upon the polymerization of bis(iminosulfur oxydifluorides) and bis(aryl silyl ethers) is described. This novel class of SuFEx polymer presents two key characteristics: First, the newly created [-N=S(=O)F-O-] polymer backbone linkages are themselves SuFExable and primed to undergo further high-yielding and precise SuFEx-based post-modification with phenols or amines to yield branched functional polymers. Second, studies of individual polymer chains of several of these new materials indicate the presence of helical polymer structures, which itself suggests a preferential approach of new monomers onto the growing polymer chain upon the formation of the stereogenic linking moiety.

scholarly journals Advances in the Multi-Orthogonal Folding of Single Polymer Chains into Single-Chain Nanoparticles

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 293
Author(s):  
Agustín Blazquez-Martín ◽  
Ester Verde-Sesto ◽  
Angel J. Moreno ◽  
Arantxa Arbe ◽  
Juan Colmenero ◽  
...  
Keyword(s):  
Computer Simulations ◽  
Chemical Species ◽  
Synthetic Polymers ◽  
Review Article ◽  
Polymer Chains ◽  
Single Chain ◽  
High Dilution ◽  
Covalent Bonds ◽  
Covalent Interactions ◽  
Individual Polymer

The folding of certain proteins (e.g., enzymes) into perfectly defined 3D conformations via multi-orthogonal interactions is critical to their function. Concerning synthetic polymers chains, the “folding” of individual polymer chains at high dilution via intra-chain interactions leads to so-called single-chain nanoparticles (SCNPs). This review article describes the advances carried out in recent years in the folding of single polymer chains into discrete SCNPs via multi-orthogonal interactions using different reactive chemical species where intra-chain bonding only occurs between groups of the same species. First, we summarize results from computer simulations of multi-orthogonally folded SCNPs. Next, we comprehensively review multi-orthogonally folded SCNPs synthesized via either non-covalent bonds or covalent interactions. Finally, we conclude by summarizing recent research about multi-orthogonally folded SCNPs prepared through both reversible (dynamic) and permanent bonds.

Competing polymer–substrate interactions mitigate random copolymer adsorption

Soft Matter ◽  
2018 ◽  
Vol 14 (35) ◽  
pp. 7204-7213 ◽  
Author(s):  
Mary J. B. Davis ◽  
Biao Zuo ◽  
Rodney D. Priestley
Keyword(s):  
Random Copolymer ◽  
Polymer Substrate ◽  
Compositional Heterogeneity ◽  
Substrate Interactions ◽  
Adsorbed Layers ◽  
Individual Polymer

Compositional heterogeneity introduces a competition between individual polymer–substrate interactions that limits the growth of irreversibly adsorbed layers.

Asymmetric Molecular Friction in Supported Phospholipid Bilayers Revealed by NMR Measurements of Lipid Diffusion

Langmuir ◽  
1998 ◽  
Vol 14 (5) ◽  
pp. 982-984 ◽  
Author(s):  
M. Hetzer ◽  
S. Heinz ◽  
S. Grage ◽  
T. M. Bayerl
Keyword(s):  
Phospholipid Bilayers ◽  
Lipid Diffusion ◽  
Molecular Friction

scholarly journals Studying physisorption processes and molecular friction of cycloparaphenylene molecules on graphene nano-sized flakes: role of π⋯π and CH⋯π interactions

2017 ◽  
Vol 2 (3) ◽  
pp. 253-262 ◽  
Author(s):  
A. Pérez-Guardiola ◽  
A. J. Pérez-Jiménez ◽  
J. C. Sancho-García
Keyword(s):  
Cost Effective ◽  
Π Interactions ◽  
Graphene Flakes ◽  
Non Covalent Interactions ◽  
Molecular Friction ◽  
Covalent Interactions

We theoretically study, by means of dispersion-corrected and cost-effective methods, the strength of non-covalent interactions between cyclic organic nanorings and nano-sized graphene flakes acting as substrates.

scholarly journals Oxidative regulation of the mechanical strength of a C–S bond

2020 ◽  
Vol 11 (38) ◽  
pp. 10444-10448
Author(s):  
Yangju Lin ◽  
Stephen L. Craig
Keyword(s):  
Fracture Toughness ◽  
Mechanical Strength ◽  
Performance Metrics ◽  
Polymer Chains ◽  
Bulk Materials ◽  
Oxidative Regulation ◽  
Individual Polymer

The mechanical strength of individual polymer chains is believed to underlie a number of performance metrics in bulk materials, including adhesion and fracture toughness.

Photovoltaic effect of individual polymer nanotube

2012 ◽  
Vol 100 (17) ◽  
pp. 173902 ◽  
Author(s):  
Jiahui Tan ◽  
Lang Jiang ◽  
Liangfu He ◽  
Huanli Dong ◽  
Wenping Hu
Keyword(s):  
Photovoltaic Effect ◽  
Individual Polymer

Covalent Connection of Two Individual Polymer Chains on a Surface: An Elementary Step towards Molecular Nanoconstructions

2003 ◽  
Vol 42 (17) ◽  
pp. 1932-1935 ◽  
Author(s):  
Jörg Barner ◽  
Frank Mallwitz ◽  
Lijin Shu ◽  
A. Dieter Schlüter ◽  
Jürgen P. Rabe
Keyword(s):  
Elementary Step ◽  
Polymer Chains ◽  
Individual Polymer

scholarly journals Molecular Friction-Induced Electroosmotic Phenomena in Thin Neutral Nanotubes

2014 ◽  
Vol 5 (12) ◽  
pp. 2131-2137 ◽  
Author(s):  
Lela Vuković ◽  
Elizabeth Vokac ◽  
Petr Král
Keyword(s):  
Molecular Friction

Optical characterization of an individual polymer-shelled microbubble structure via digital holography

Soft Matter ◽  
2012 ◽  
Vol 8 (34) ◽  
pp. 8822 ◽  
Author(s):  
F. Saglimbeni ◽  
S. Bianchi ◽  
G. Bolognesi ◽  
G. Paradossi ◽  
R. Di Leonardo
Keyword(s):  
Digital Holography ◽  
Optical Characterization ◽  
Individual Polymer
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