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

scholarly journals Microfluidic Fabrication of Click Chemistry-Mediated Hyaluronic Acid Microgels: A Bottom-Up Material Guide to Tailor a Microgel’s Physicochemical and Mechanical Properties

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1760
Author(s):  
Thomas Heida ◽  
Oliver Otto ◽  
Doreen Biedenweg ◽  
Nicolas Hauck ◽  
Julian Thiele
Keyword(s):  
Mechanical Properties ◽  
Hyaluronic Acid ◽  
Click Chemistry ◽  
Cell Biology ◽  
Click Reaction ◽  
Droplet Microfluidics ◽  
Natural Polymers ◽  
Bottom Up ◽  
Multiple Binding Sites ◽  
Thermo Stability

The demand for tailored, micrometer-scaled biomaterials in cell biology and (cell-free) biotechnology has led to the development of tunable microgel systems based on natural polymers, such as hyaluronic acid (HA). To precisely tailor their physicochemical and mechanical properties and thus to address the need for well-defined microgel systems, in this study, a bottom-up material guide is presented that highlights the synergy between highly selective bio-orthogonal click chemistry strategies and the versatility of a droplet microfluidics (MF)-assisted microgel design. By employing MF, microgels based on modified HA-derivates and homobifunctional poly(ethylene glycol) (PEG)-crosslinkers are prepared via three different types of click reaction: Diels–Alder [4 + 2] cycloaddition, strain-promoted azide-alkyne cycloaddition (SPAAC), and UV-initiated thiol–ene reaction. First, chemical modification strategies of HA are screened in-depth. Beyond the microfluidic processing of HA-derivates yielding monodisperse microgels, in an analytical study, we show that their physicochemical and mechanical properties—e.g., permeability, (thermo)stability, and elasticity—can be systematically adapted with respect to the type of click reaction and PEG-crosslinker concentration. In addition, we highlight the versatility of our HA-microgel design by preparing non-spherical microgels and introduce, for the first time, a selective, hetero-trifunctional HA-based microgel system with multiple binding sites. As a result, a holistic material guide is provided to tailor fundamental properties of HA-microgels for their potential application in cell biology and (cell-free) biotechnology.

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.

Construction of a 3D multiple network skeleton by the thiol-Michael addition click reaction to fabricate novel polymer/graphene aerogels with exceptional thermal conductivity and mechanical properties

2017 ◽  
Vol 5 (42) ◽  
pp. 22352-22360 ◽  
Author(s):  
Shiqiang Song ◽  
Yong Zhang
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Freeze Drying ◽  
Click Reaction ◽  
Porous Polymer ◽  
Compressive Properties ◽  
Graphene Composite ◽  
Drying Procedures ◽  
Composite Aerogels ◽  
Multiple Network

Novel porous polymer/graphene composite aerogels with a multiple network structure, enhanced compressive properties and high thermal conductivity are first fabricated by adsorbing water vapour, reduction, and freeze-drying procedures.

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 Preparation and Properties of SBS-g-GOs-Modified Asphalt Based on a Thiol-ene Click Reaction in a Bituminous Environment

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1264 ◽  
Author(s):  
Jing Li ◽  
Meizhao Han ◽  
Yaseen Muhammad ◽  
Yu Liu ◽  
Zhibin Su ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Photoelectron Spectroscopy ◽  
Click Reaction ◽  
Morphological Characterization ◽  
Creep Recovery ◽  
X Ray ◽  
Modified Asphalt ◽  
Textural Characterization ◽  
New Ideas ◽  
Styrene Butadiene

Styrene-butadiene styrene graphene oxide nanoplatelets (SBS-g-GOs)-modified asphalt was prepared by reacting thiolated GOs (GOs-SH) with SBS in asphalt using a thiol-ene click reaction. The temperature resistance and mechanical properties of asphalts were analyzed by dynamic shear rheology (DSR) and multiple-stress creep-recovery (MSCR) tests, which revealed that an optimum amount of GOs-SH (0.02%) can effectively improve the low temperature and anti-rutting performance of SBS asphalt. Segregation experiments showed that SBS-g-GOs possessed good stability and dispersion in base asphalt. Fluorescence microscopy results revealed that the addition of GOs-SH promoted the formation of SBS network structure. Textural and morphological characterization of GOs-SH and SBS were achieved by Fourier transform infra-red (FT-IR) spectroscopy, energy-dispersive spectroscopy (EDS), atomic-force microscopy (AFM), X-ray diffraction (XRD), and scanning electron microscopy (SEM), while surface chemical composition was tested by X-ray photoelectron spectroscopy (XPS). Based on textural characterization data, a suitable reaction mechanism was proposed that involved the preferential reaction between GOs-SH and 1,2 C=C of SBS. The currently designed GOs-SH incorporated asphalt via thiol-ene click reaction provides new ideas for the preparation of modified asphalt with enhanced mechanical properties for target-oriented applications.

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...

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

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”.

Cross-linked supramolecular polymers synthesized by photo-initiated thiol-ene click reaction of supramonomers

2018 ◽  
Vol 355 ◽  
pp. 414-418 ◽  
Author(s):  
Xiaoguang Liu ◽  
Bo Qin ◽  
Jiang-Fei Xu ◽  
Zhiqiang Wang ◽  
Xi Zhang
Keyword(s):  
Click Reaction ◽  
Supramolecular Polymers
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