Polymer Framework with Continuous Pores for Hydrogen Getters: Molding and a Boost in Getter Rate

2020 ◽  
Vol 2 (8) ◽  
pp. 3243-3250
Author(s):  
Hui Dong ◽  
Yingying Wang ◽  
Hao Fu ◽  
Minheng Ye ◽  
Guangping Tang ◽  
...  
Keyword(s):  
Polymer Framework

Topochemical Synthesis of 2D Carbon Hybrids through Self-Boosting Catalytic Carbonization of a Metal-Polymer Framework

2018 ◽  
Vol 130 (50) ◽  
pp. 16674-16679 ◽  
Author(s):  
Qiao Zhang ◽  
Yanping Zhou ◽  
Feng Xu ◽  
Huijuan Lin ◽  
Yan Yan ◽  
...  
Keyword(s):  
Polymer Framework ◽  
Metal Polymer

Metal Coordination Polymer Framework Governed by Heat of Hydration for Noninvasive Differentiation of Alkali Metal Series

2018 ◽  
Vol 90 (21) ◽  
pp. 12917-12922
Author(s):  
Shateesh Battu ◽  
Mahesh Itagi ◽  
Zahid Manzoor Bhat ◽  
Siddhi Khaire ◽  
Alagar Raja Kottaichamy ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Alkali Metal ◽  
Heat Of Hydration ◽  
Metal Coordination ◽  
Polymer Framework

scholarly journals MODIFICATION OF LOW-MOLECULAR COPOLYMER FROM BY-PRODUCTS OF BUTADIENE RUBBER BY SECONDARY EXPANDED POLYSTYRENE

2019 ◽  
Vol 62 (1) ◽  
pp. 114-119 ◽  
Author(s):  
Nadezhda S. Nikulina ◽  
Galina Yu. Vostrikova ◽  
Alexander I. Dmitrenkov ◽  
Sergei S. Nikulin
Keyword(s):  
Wood Fiber ◽  
Joint Destruction ◽  
Expanded Polystyrene ◽  
Wood Products ◽  
Butadiene Rubber ◽  
Hydrophobic Properties ◽  
Polymer Waste ◽  
Wood Polymer ◽  
Polymer Framework ◽  
By Products

From the literature data it is known that in industrial and civil construction it is widely used expanded polystyrene as a heat-insulating material, which is in demand on the market. In order to solve a number of ecological problems, in this work attempts have been made to chemically combine two types of polymer waste (by-products of petrochemistry in the presence of expanded polystyrene) to obtain impregnating compounds at the molecular level by carrying out their joint destruction and applying wood products for protective treatment. Obtained wood-polymer composites from natural wood (birch) and wood fiber boards (DVP) were investigated for resistance to water and moisture. Indicators of tests of wood for water absorption and swelling in the radial and tangential directions indicate that the samples under investigation have increased hydrophobic properties. Modified fiberboards acquire, in addition to increased hydrophobic properties and higher strength parameters. This is due to the cross-linking of oligomer molecules in wood structures with the formation of a wood-polymer framework and the formation of hydrogen and ether bonds between the wood components and the oxidized modified oligomer. The formation of such bonds makes it possible to reduce such a shortage of impregnating compositions as washability from products during their operation. Reducing the uncertainty of the oligomeric modifier reduces its hydrophilic properties. Integrated use of waste and by-products allows to purposefully dispose of them and use them for protective processing of materials, which include wood components, which contributes to the increase of the service life of products.

scholarly journals In-situ-grown silver–polymer framework with coordination complexes for functional artificial tissues

2021 ◽  
Author(s):  
Swee Ching Tan ◽  
Songlin Zhang ◽  
Yibing Deng ◽  
Alberto Libanori ◽  
Yihao Zhou ◽  
...  
Keyword(s):  
Coordination Complexes ◽  
Homogeneous Material ◽  
Multimodal Sensing ◽  
Dynamic Materials ◽  
Neuromuscular Systems ◽  
Polymer Framework ◽  
External Stimuli ◽  
Poor Adhesion ◽  
Metal Ligand

Abstract Sensorized actuators are critical to imitate proprio-/exteroception properties of biological neuromuscular systems. Existing add-on approaches, which physically blend heterogeneous sensor/actuator components, fall short of yielding satisfactory solutions, considering their suboptimal interfaces, poor adhesion, and electronic/mechanical property mismatch. Here, we report a single homogeneous material comprising seamless sensing-actuation unification properties at nano-/molecule levels, in which built-in sensing functions originate from the actuator architecture itself. In-situ-grown silver nanoparticles and metal-ligand complexes cooperatively create a silver–polymer framework (SPF) that is stretchable (1200%), conductive (0.076 S/m), and strong (0.76 MPa in-strength). SPF displays concomitant multimodal sensing (mechanical and thermal cues) and sensorized actuation capabilities, which include proprio-deformation and external stimuli perceptions (simultaneous with load-lifting ability up to 3700× of own weight). In view of its human somatosensitive muscular systems imitative functionality, the reported SPFs bode well for use with next generation functional tissues including artificial skins, human-machine interfaces, self-sensing robots, and otherwise dynamic materials.

scholarly journals A porous β-cyclodextrin-based terpolymer fluorescence sensor for in situ trinitrophenol detection

RSC Advances ◽  
2019 ◽  
Vol 9 (14) ◽  
pp. 8073-8080 ◽  
Author(s):  
Michael K. Danquah ◽  
Shan Wang ◽  
Qianyou Wang ◽  
Bo Wang ◽  
Lee D. Wilson
Keyword(s):  
Fluorescence Sensor ◽  
Polymer Framework

Permanent porosity plays a key role in fluorescent-based polymers with “on–off” emissive properties due to the role of guest adsorption at accessible fluorophore sites of the polymer framework.

Group 15 Complexes With Carboxylic Acids. V. The Preparation and Crystal Structures of {Ag5As4(C4H2O6)4(H2O)5(X)}n[(C4H2O6) = (+)-Tartrate(4-); X = NO3-, ClO4-]

1993 ◽  
Vol 46 (7) ◽  
pp. 1055 ◽  
Author(s):  
RC Bott ◽  
G Smith ◽  
DS Sagatys ◽  
TCW Mak ◽  
DE Lynch ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Silver Atom ◽  
Silver Ions ◽  
Water Molecules ◽  
Monoclinic Space Group ◽  
X Ray ◽  
Trigonal Bipyramidal ◽  
A Chain ◽  
Polymer Framework ◽  
Ray Methods

The structures of two isomorphous silver(I) complexes with arsenic(III) (+)- tartrate [Ag5As4(C4H2O6)4(H2O)5(X)]n [X = NO3- (1), ClO4- (2)] have been determined by X-ray methods and refined to residuals R of 0.045 (1) and 0.028 (2) for 3822 and 3849 observed reflections respectively. Crystals are monoclinic, space group P21 with Z 2 in cells of dimensions a 12.057(3), b 10.651(1), c 12.496(3)Ǻ, β 93.37(2)° for (1), and a 12.170(5), b 10.570(1), c 12.634(4)Ǻ, β 92.74(2)° for (2). The two complexes are isostructural , with polymer framework structures based upon two configurationally identical [As2(C4H2O6)2]2- dimer ions, analogous to these in the tartar emetic structure [As-O (hydroxyl): 1.790(7)-1.804(8)Ǻ(1); 1.768(4)-1.818(4)Ǻ(2). As-O (carboxyl): 1.966(9)-2.118(8)Ǻ(1); 1.940(5)-2.127(5)Ǻ(2)]. However, an arsenic of one of the dimers forms a short bond to a silver atom [As-Ag, 2.729(2)Ǻ(1), and 2.723(1)Ǻ(2)], completing a trigonal-bipyramidal coordination about arsenic. The arsenic dimers are in turn linked by a chain of five silver cation centres through both carboxyl and hydroxyl oxygens which also form intrachain links. All five water molecules are bonded to silver ions, with three of them bridging silver centres. The main difference between the two structures arises from the replacement of the nitrate group in (1) by a perchlorate in (2).

Multifunctional Polymer Framework Modified SnO2 Enabling a Photostable α-FAPbI3 Perovskite Solar Cell with Efficiency Exceeding 23%

2021 ◽  
pp. 3824-3830
Author(s):  
Zhenghong Xiong ◽  
Linkai Lan ◽  
Yiyang Wang ◽  
Chenxing Lu ◽  
Shucheng Qin ◽  
...  
Keyword(s):  
Solar Cell ◽  
Perovskite Solar Cell ◽  
Polymer Framework

scholarly journals A Nitrogen‐Rich 2D sp 2 ‐Carbon‐Linked Conjugated Polymer Framework as a High‐Performance Cathode for Lithium‐Ion Batteries

2019 ◽  
Vol 58 (3) ◽  
pp. 849-853 ◽  
Author(s):  
Shunqi Xu ◽  
Gang Wang ◽  
Bishnu P. Biswal ◽  
Matthew Addicoat ◽  
Silvia Paasch ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Conjugated Polymer ◽  
High Performance ◽  
Lithium Ion ◽  
Polymer Framework
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