Triterpenoid-Based Self-Healing Supramolecular Polymer Hydrogels Formed by Host-Guest Interactions

2016 ◽  
Vol 22 (51) ◽  
pp. 18435-18441 ◽  
Author(s):  
Ying Li ◽  
Jianzuo Li ◽  
Xia Zhao ◽  
Qiang Yan ◽  
Yuxia Gao ◽  
...  
Keyword(s):  
Supramolecular Polymer ◽  
Self Healing ◽  
Polymer Hydrogels

scholarly journals Novel Self-Healing Metallocopolymers with Pendent 4-Phenyl-2,2′:6′,2″-terpyridine Ligand: Kinetic Studies and Mechanical Properties

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1760
Author(s):  
Rose K. Baimuratova ◽  
Gulzhian I. Dzhardimalieva ◽  
Evgeniy V. Vaganov ◽  
Valentina A. Lesnichaya ◽  
Gulsara D. Kugabaeva ◽  
...  
Keyword(s):  
Critical Role ◽  
Specific Effect ◽  
Kinetic Studies ◽  
Radical Copolymerization ◽  
Self Healing ◽  
Free Radical Copolymerization ◽  
Polymer Hydrogels ◽  
Close Proximity ◽  
Metal Group ◽  
Metal Polymer

We report here our successful attempt to obtain self-healing supramolecular hydrogels with new metal-containing monomers (MCMs) with pendent 4-phenyl-2,2′:6′,2″-terpyridine metal complexes as reversible moieties by free radical copolymerization of MCMs with vinyl monomers, such as acrylic acid and acrylamide. The resulting metal-polymer hydrogels demonstrate a developed system of hydrogen, coordination and electron-complementary π–π stacking interactions, which play a critical role in achieving self-healing. Kinetic data show that the addition of a third metal-containing comonomer to the system decreases the initial polymerization rate, which is due to the specific effect of the metal group located in close proximity of the active center on the growth of radicals.

Electrochemical aptasensor based on conductive supramolecular polymer hydrogels for thrombin detection with high selectivity

Talanta ◽  
2019 ◽  
Vol 205 ◽  
pp. 120140 ◽  
Author(s):  
Xinyan Wang ◽  
Fengxian Gao ◽  
Yiyu Gong ◽  
Guotao Liu ◽  
Yu Zhang ◽  
...  
Keyword(s):  
High Selectivity ◽  
Supramolecular Polymer ◽  
Electrochemical Aptasensor ◽  
Polymer Hydrogels

A self-healing supramolecular polymer gel with stimuli-responsiveness constructed by crown ether based molecular recognition

2013 ◽  
Vol 4 (11) ◽  
pp. 3312 ◽  
Author(s):  
Xuzhou Yan ◽  
Donghua Xu ◽  
Jianzhuang Chen ◽  
Mingming Zhang ◽  
Bingjie Hu ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Crown Ether ◽  
Supramolecular Polymer ◽  
Self Healing ◽  
Polymer Gel

scholarly journals Self-Healable Supramolecular Vanadium Pentoxide Reinforced Polydimethylsiloxane-Graft-Polyurethane Composites

Polymers ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 41 ◽  
Author(s):  
Ali Berkem ◽  
Ahmet Capoglu ◽  
Turgut Nugay ◽  
Erol Sancaktar ◽  
Ilke Anac
Keyword(s):  
Tensile Strength ◽  
Vanadium Pentoxide ◽  
Coupling Reaction ◽  
Optical Microscope ◽  
Mechanical Tests ◽  
Healing Time ◽  
The Self ◽  
Supramolecular Polymer ◽  
Self Healing ◽  
Healing Efficiency

The self-healing ability can be imparted to the polymers by different mechanisms. In this study, self-healing polydimethylsiloxane-graft-polyurethane (PDMS-g-PUR)/Vanadium pentoxide (V2O5) nanofiber supramolecular polymer composites based on a reversible hydrogen bonding mechanism are prepared. V2O5 nanofibers are synthesized via colloidal route and characterized by XRD, SEM, EDX, and TEM techniques. In order to prepare PDMS-g-PUR, linear aliphatic PUR having one –COOH functional group (PUR-COOH) is synthesized and grafted onto aminopropyl functionalized PDMS by EDC/HCl coupling reaction. PUR-COOH and PDMS-g-PUR are characterized by 1H NMR, FTIR. PDMS-g-PUR/V2O5 nanofiber composites are prepared and characterized by DSC/TGA, FTIR, and tensile tests. The self-healing ability of PDMS-graft-PUR and composites are determined by mechanical tests and optical microscope. Tensile strength data obtained from mechanical tests show that healing efficiencies of PDMS-g-PUR increase with healing time and reach 85.4 ± 1.2 % after waiting 120 min at 50 °C. The addition of V2O5 nanofibers enhances the mechanical properties and healing efficiency of the PDMS-g-PUR. An increase of healing efficiency and max tensile strength from 85.4 ± 1.2% to 95.3 ± 0.4% and 113.08 ± 5.24 kPa to 1443.40 ± 8.96 kPa is observed after the addition of 10 wt % V2O5 nanofiber into the polymer.

Sustained release of proteins from high water content supramolecular polymer hydrogels

Biomaterials ◽  
2012 ◽  
Vol 33 (18) ◽  
pp. 4646-4652 ◽  
Author(s):  
Eric A. Appel ◽  
Xian Jun Loh ◽  
Samuel T. Jones ◽  
Cecile A. Dreiss ◽  
Oren A. Scherman
Keyword(s):  
Sustained Release ◽  
Water Content ◽  
High Water ◽  
High Water Content ◽  
Supramolecular Polymer ◽  
Polymer Hydrogels

Multi-stimuli-responsive self-healing metallo-supramolecular polymer nanocomposites

2016 ◽  
Vol 4 (9) ◽  
pp. 3324-3334 ◽  
Author(s):  
Qifeng Zheng ◽  
Zhenqiang Ma ◽  
Shaoqin Gong
Keyword(s):  
Mechanical Properties ◽  
Polymer Nanocomposites ◽  
Supramolecular Polymer ◽  
Self Healing ◽  
Stimuli Responsive ◽  
Rare Combination

Metallo-supramolecular polymer nanocomposites show a rare combination of strong, tough, and elastic mechanical properties and were able to self-heal via multiple stimuli.

scholarly journals Unveiling the molecular mechanism of self-healing in a telechelic, supramolecular polymer network

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Tingzi Yan ◽  
Klaus Schröter ◽  
Florian Herbst ◽  
Wolfgang H. Binder ◽  
Thomas Thurn-Albrecht
Keyword(s):  
Molecular Mechanism ◽  
Polymer Network ◽  
Supramolecular Polymer ◽  
Self Healing
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