Bio-Inspired Metallo-Supramolecular Polymers for Combined Mechanical Properties

2010 ◽  
Author(s):  
Robert H. Lambeth ◽  
Kenneth E. Strawhecker ◽  
Joshua A. Orlicki
Keyword(s):  
Mechanical Properties ◽  
Supramolecular Polymers

Mechanical properties of single supramolecular polymers from correlative AFM and fluorescence microscopy

2016 ◽  
Vol 7 (47) ◽  
pp. 7260-7268 ◽  
Author(s):  
Michael A. Beuwer ◽  
M. F. Knopper ◽  
Lorenzo Albertazzi ◽  
Daan van der Zwaag ◽  
Wouter G. Ellenbroek ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fluorescence Microscopy ◽  
Fluorescence Imaging ◽  
Supramolecular Polymers

We characterize the structure and mechanical properties of 1,3,5-benzenetricarboxamide (BTA) supramolecular polymers using correlative AFM and fluorescence imaging.

scholarly journals Crystallization, rheology and mechanical properties of the blends of poly(l-lactide) with supramolecular polymers based on poly(d-lactide)–poly(ε-caprolactone-co-δ-valerolactone)–poly(d-lactide) triblock copolymers

RSC Advances ◽  
2019 ◽  
Vol 9 (45) ◽  
pp. 26067-26079
Author(s):  
Zhanxin Jing ◽  
Jin Li ◽  
Weiyu Xiao ◽  
Hefeng Xu ◽  
Pengzhi Hong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Triblock Copolymer ◽  
Triblock Copolymers ◽  
Supramolecular Polymers ◽  
Supramolecular Polymer

Supramolecular polymer based on PDLA–PCVL–PDLA triblock copolymer was used for the modification of PLLA, and the results showed that it is an effective way to control the crystallization, rheology and mechanical properties of PLLA.

scholarly journals Supramolecular polymer-assisted manipulation of triblock copolymers: Understanding the relationships between microphase structures and mechanical properties

2021 ◽  
Author(s):  
Zhexian Shentu ◽  
Zhaoming Zhang ◽  
Jun Zhao ◽  
ChuanShuang Chen ◽  
Qian Wu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Block Copolymers ◽  
Triblock Copolymers ◽  
Supramolecular Polymers ◽  
Supramolecular Polymer ◽  
Structures And Properties

Block copolymers with specific microphase-separated structures are a class of important reprocessable elastomers. Numerous approaches have been applied to modify their structures and properties, whereas incorporating supramolecular polymers into the...

scholarly journals Multivalency in healable supramolecular polymers: the effect of supramolecular cross-link density on the mechanical properties and healing of non-covalent polymer networks

2014 ◽  
Vol 5 (11) ◽  
pp. 3680-3688 ◽  
Author(s):  
Lewis R. Hart ◽  
James H. Hunter ◽  
Ngoc A. Nguyen ◽  
Josephine L. Harries ◽  
Barnaby W. Greenland ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Blends ◽  
Crosslink Density ◽  
Polymer Networks ◽  
Supramolecular Polymers ◽  
Supramolecular Polymer ◽  
Cross Link ◽  
Link Density ◽  
Cross Link Density

Mechanical properties of healable supramolecular polymer blends correlate to non-covalent “crosslink density”.

Using metal–ligand interactions to access biomimetic supramolecular polymers with adaptive and superb mechanical properties

2013 ◽  
Vol 1 (37) ◽  
pp. 4809 ◽  
Author(s):  
Jinchun Yuan ◽  
Huan Zhang ◽  
Guangning Hong ◽  
Yinjun Chen ◽  
Guohua Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Supramolecular Polymers ◽  
Ligand Interactions ◽  
Metal Ligand

scholarly journals Metallacycle-crosslinked supramolecular polymers constructed by amino–YNE click reaction with enhanced mechanical properties

2022 ◽  
Vol 1 ◽  
pp. 100003
Author(s):  
Feng Chen ◽  
Xiongjie Lin ◽  
Yang Li ◽  
Dongdong Xu ◽  
Huayu Qiu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Click Reaction ◽  
Supramolecular Polymers

Phase Transformations in Ti-7w/oMo-3w/oMe Alloy

1974 ◽  
Vol 32 ◽  
pp. 514-515
Author(s):  
S. Fujishiro
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Transmission Electron Microscopy ◽  
Tensile Strength ◽  
Mechanical Processing ◽  
Ray Method ◽  
X Ray ◽  
Transmission Electron ◽  
Water Quench ◽  
Alpha Beta

The mechanical properties of three titanium alloys (Ti-7Mo-3Al, Ti-7Mo- 3Cu and Ti-7Mo-3Ta) were evaluated as function of: 1) Solutionizing in the beta field and aging, 2) Thermal Mechanical Processing in the beta field and aging, 3) Solutionizing in the alpha + beta field and aging. The samples were isothermally aged in the temperature range 300° to 700*C for 4 to 24 hours, followed by a water quench. Transmission electron microscopy and X-ray method were used to identify the phase formed. All three alloys solutionized at 1050°C (beta field) transformed to martensitic alpha (alpha prime) upon being water quenched. Despite this heavily strained alpha prime, which is characterized by microtwins the tensile strength of the as-quenched alloys is relatively low and the elongation is as high as 30%.

Effects of cooling rate on the mechanical properties of dual phase treated vanadium steels

1983 ◽  
Vol 41 ◽  
pp. 220-221
Author(s):  
L.J. Chen ◽  
H.C. Cheng ◽  
J.R. Gong ◽  
J.G. Yang
Keyword(s):  
Mechanical Properties ◽  
Cooling Rate ◽  
Automobile Industry ◽  
High Strength ◽  
Weight Percent ◽  
Low Alloy Steels ◽  
Dual Phase ◽  
Resource Requirement ◽  
Alloy Steels ◽  
Potential Weight

For fuel savings as well as energy and resource requirement, high strength low alloy steels (HSLA) are of particular interest to automobile industry because of the potential weight reduction which can be achieved by using thinner section of these steels to carry the same load and thus to improve the fuel mileage. Dual phase treatment has been utilized to obtain superior strength and ductility combinations compared to the HSLA of identical composition. Recently, cooling rate following heat treatment was found to be important to the tensile properties of the dual phase steels. In this paper, we report the results of the investigation of cooling rate on the microstructures and mechanical properties of several vanadium HSLA steels.The steels with composition (in weight percent) listed below were supplied by China Steel Corporation: 1. low V steel (0.11C, 0.65Si, 1.63Mn, 0.015P, 0.008S, 0.084Aℓ, 0.004V), 2. 0.059V steel (0.13C, 0.62S1, 1.59Mn, 0.012P, 0.008S, 0.065Aℓ, 0.059V), 3. 0.10V steel (0.11C, 0.58Si, 1.58Mn, 0.017P, 0.008S, 0.068Aℓ, 0.10V).

Lattice Imaging of Grain Boundaries in Ceramics

1977 ◽  
Vol 35 ◽  
pp. 114-115
Author(s):  
D. R. Clarke ◽  
G. Thomas
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Silicon Nitride ◽  
Grain Boundaries ◽  
High Temperature Strength ◽  
Current Interest ◽  
Lattice Imaging ◽  
Special Significance ◽  
Structural Applications ◽  
Refractory Ceramics

Grain boundaries have long held a special significance to ceramicists. In part, this has been because it has been impossible until now to actually observe the boundaries themselves. Just as important, however, is the fact that the grain boundaries and their environs have a determing influence on both the mechanisms by which powder compaction occurs during fabrication, and on the overall mechanical properties of the material. One area where the grain boundary plays a particularly important role is in the high temperature strength of hot-pressed ceramics. This is a subject of current interest as extensive efforts are being made to develop ceramics, such as silicon nitride alloys, for high temperature structural applications. In this presentation we describe how the techniques of lattice fringe imaging have made it possible to study the grain boundaries in a number of refractory ceramics, and illustrate some of the findings.

Electron Microscopic Observation of the Longitudinal Organization of Poly (p-Phenylene Terephthalamide) Fibers

1982 ◽  
Vol 40 ◽  
pp. 680-681
Author(s):  
Li Li-Sheng ◽  
L.F. Allard ◽  
W.C. Bigelow
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Microscopic Observation ◽  
Electron Microscopic Observation ◽  
Electron Microscopic ◽  
Aromatic Polyamides ◽  
Radial Arrangement ◽  
Scanning Electron ◽  
Better Than

The aromatic polyamides form a class of fibers having mechanical properties which are much better than those of aliphatic polyamides. Currently, the accepted morphology of these fibers as proposed by M.G. Dobb, et al. is a radial arrangement of pleated sheets, with the plane of the pleats parallel to the axis of the fiber. We have recently obtained evidence which supports a different morphology of this type of fiber, using ultramicrotomy and ion-thinning techniques to prepare specimens for transmission and scanning electron microscopy.

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