scholarly journals Hooking Together Sigmoidal Monomers into Supramolecular Polymers

2019 ◽  
Author(s):  
Marco Carini ◽  
Mauro Marongiu ◽  
Karol Strutyński ◽  
Akinori Saeki ◽  
Manuel Melle-Franco ◽  
...  
Keyword(s):  
Electronic Transport ◽  
Conductive Polymers ◽  
Supramolecular Polymers ◽  
Self Healing ◽  
Stimuli Responsive ◽  
New Materials ◽  
Conjugated Molecules ◽  
New Approach ◽  
Conducting Materials ◽  
The Way

<div><div><div><p>Supramolecular polymers have a lot of potential in the development of new materials because of their inherent recyclability and their self-healing and stimuli-responsive properties. Supramolecular conductive polymers are generally obtained by the assembly of individual disk-like π-conjugated molecules into columnar arrays that provide an optimal channel for electronic transport. We report a new approach to prepare supramolecular polymers by hooking together sigmoidal monomers into 1D arrays of π-stacked anthracene and acridine units, which give rise to micrometer-sized fibrils that show pseudoconductivities in line with other conducting materials. This approach paves the way for the design of new supramolecular polymers constituted by acene derivatives with enhanced excitonic and electronic transporting properties.</p></div></div></div>

Hooking Together Sigmoidal Monomers into Supramolecular Polymers

2019 ◽  
Author(s):  
Marco Carini ◽  
Mauro Marongiu ◽  
Karol Strutyński ◽  
Akinori Saeki ◽  
Manuel Melle-Franco ◽  
...  
Keyword(s):  
Electronic Transport ◽  
Conductive Polymers ◽  
Supramolecular Polymers ◽  
Self Healing ◽  
Stimuli Responsive ◽  
New Materials ◽  
Conjugated Molecules ◽  
New Approach ◽  
Conducting Materials ◽  
The Way

<div><div><div><p>Supramolecular polymers have a lot of potential in the development of new materials because of their inherent recyclability and their self-healing and stimuli-responsive properties. Supramolecular conductive polymers are generally obtained by the assembly of individual disk-like π-conjugated molecules into columnar arrays that provide an optimal channel for electronic transport. We report a new approach to prepare supramolecular polymers by hooking together sigmoidal monomers into 1D arrays of π-stacked anthracene and acridine units, which give rise to micrometer-sized fibrils that show pseudoconductivities in line with other conducting materials. This approach paves the way for the design of new supramolecular polymers constituted by acene derivatives with enhanced excitonic and electronic transporting properties.</p></div></div></div>

scholarly journals Aqueous interfacial gels assembled from small molecule supramolecular polymers

2017 ◽  
Vol 8 (2) ◽  
pp. 1350-1355 ◽  
Author(s):  
Alexander S. Groombridge ◽  
Aniello Palma ◽  
Richard M. Parker ◽  
Chris Abell ◽  
Oren A. Scherman
Keyword(s):  
Small Molecules ◽  
Small Molecule ◽  
Self Assembly ◽  
Hyperbranched Polymer ◽  
Soft Matter ◽  
Supramolecular Polymers ◽  
Supramolecular Network ◽  
Self Healing ◽  
Liquid Interfaces ◽  
Stimuli Responsive

The successful self-assembly of a stimuli-responsive aqueous supramolecular hyperbranched polymer from small molecules and the macrocyclic host cucurbit[8]uril (CB[8]) is reported. This self-healing supramolecular network can act as a soft matter barrier at liquid–liquid interfaces.

scholarly journals Preparation and Electron-Beam Surface Modification of Novel TiNi Material for Medical Applications

2021 ◽  
Vol 11 (10) ◽  
pp. 4372
Author(s):  
Sergey G. Anikeev ◽  
Anastasiia V. Shabalina ◽  
Sergei A. Kulinich ◽  
Nadezhda V. Artyukhova ◽  
Daria R. Korsakova ◽  
...  
Keyword(s):  
Electron Beam ◽  
Material Surface ◽  
High Current ◽  
New Materials ◽  
New Approach ◽  
Pulsed Electron Beam ◽  
Beam Surface ◽  
Compositional Changes ◽  
Unmodified Sample ◽  
Mcf 7

A new approach to fabricate TiNi surfaces combining the advantages of both monolithic and porous materials for implants is used in this work. New materials were obtained by depositing a porous TiNi powder onto monolithic TiNi plates followed by sintering at 1200 °C. Then, further modification of the material surface with a high-current-pulsed electron beam (HCPEB) was carried out. Three materials obtained (one after sintering and two after subsequent beam treatment by 30 pulses with different pulse energy) were studied by XRD, SEM, EDX, surface profilometry, and by means of electrochemical measurements, including OCP and EIS. Structural and compositional changes caused by HCPEB treatment were investigated. Surface properties of the samples during their storage in saline for 10 days were studied and a model experiment with cell growth (MCF-7) was carried out for the unmodified sample with an electron beam to detect cell appearance on different surface locations.

Stimuli-responsive conductive hydrogels: design, property and applications

2021 ◽  
Author(s):  
Zexing Deng ◽  
Rui Yu ◽  
Baolin Guo
Keyword(s):  
Conductive Polymers ◽  
Research Field ◽  
Stimuli Responsive ◽  
Conductive Hydrogel ◽  
Design Property ◽  
Conductive Hydrogels

Stimuli-responsive conductive hydrogel has been emerged as a new surging concept in hydrogel research field due to its combined advantages of stimuli-responsivity and conductivity from conductive polymers (such as polyaniline,...

The Application of the Deviation Concept of Turbine Cycle Monitoring

1961 ◽  
Vol 83 (4) ◽  
pp. 423-430
Author(s):  
H. T. Hoffman ◽  
C. P. Welch
Keyword(s):  
Data Processing ◽  
Steam Turbine ◽  
Precision Measurement ◽  
Heat Rate ◽  
Companion Paper ◽  
New Approach ◽  
Processing Equipment ◽  
Plant Personnel ◽  
Cycle Monitoring ◽  
The Way

In a companion paper, J. K. Salisbury has presented the theoretical aspects of a new approach to analyzing the steam turbine cycle. This paper presents the results of efforts at applying this new approach to the monitoring of the economics of turbine cycle operation. Means are presented for identifying cycle faults and determining the change in heat rate resulting from these faults. Very little in the way of precision measurement and calculation is required. These techniques are, therefore, amenable to use by plant personnel with the tools already at hand. By the same token they also provide advantages when employing data-processing equipment.

scholarly journals Symmetry breakdown and coupling constants of leptons

2007 ◽  
Vol 79 (2) ◽  
pp. 195-208 ◽  
Author(s):  
Gil C. Marques ◽  
Dominique Spehler
Keyword(s):  
Coupling Constants ◽  
Electroweak Interactions ◽  
New Approach ◽  
Fundamental Interactions ◽  
Electromagnetic Interactions ◽  
Symmetry Breakdown ◽  
A Value ◽  
Intermediate Bosons ◽  
The One ◽  
The Way

Based on a new approach to symmetries of the fundamental interactions we deal, in this paper, with the electroweak interactions of leptons. We show that the coupling constants, arising in the way leptons are coupled to intermediate bosons, can be understood as parameters associated to the breakdown of SU(2) and parity symmetries. The breakdown of both symmetries is characterized by a new parameter (the asymetry parameter) of the electroweak interactions. This parameter gives a measure of the strength of breakdown of symmetries. We analyse the behaviour of the theory for three values of this parameter. The most relevant value is the one for which only the electromagnetic interactions do not break parity (the maximally allowed left-right asymetric theory). Maximamally allowed parity asymmetry is a requirement that is met for a value of Weinberg's theta-angle that is quite close to the experimental value of this parameter.

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