Fluorescence-color-tunable and transparent polyarylene ether nitrile films with high thermal stability and mechanical strength based on polymeric rare-earth complexes for roll-up displays

2013 ◽  
Vol 91 ◽  
pp. 235-238 ◽  
Author(s):  
Hailong Tang ◽  
Zejun Pu ◽  
Junji Wei ◽  
Haoyu Guo ◽  
Xu Huang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Mechanical Strength ◽  
High Thermal Stability ◽  
Rare Earth Complexes ◽  
Polyarylene Ether Nitrile ◽  
Fluorescence Color ◽  
Strength Based ◽  
Color Tunable

Achieving high thermal stability of different rare-earth ions in a single matrix host via the manipulation of the local structure by a solid solution

2020 ◽  
Vol 22 (28) ◽  
pp. 16294-16300
Author(s):  
Xiuxia Yang ◽  
Lei Zhao ◽  
Zhichao Liu ◽  
Shuyu Tian ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Rare Earth ◽  
Local Structure ◽  
Local Environment ◽  
High Thermal Stability ◽  
Rare Earth Ions ◽  
Single Matrix ◽  
Thermal Stability Of

Manipulating the local environment of CAS by substitution of Al3+–Y3+ for Si4+–Ca2+ to achieve more stability in the structure of CYA.

New, thermally stable, rigid polyurethane foams based on polyols obtained using morpholine-2,3-dione derivatives

2018 ◽  
Vol 54 (4) ◽  
pp. 719-741 ◽  
Author(s):  
Iwona Zarzyka ◽  
Anita Bialkowska ◽  
Tomasz Paczesniak ◽  
Wieslaw Fracz ◽  
Dorota Majda
Keyword(s):  
Thermal Stability ◽  
Mechanical Strength ◽  
Operating Temperature ◽  
Polyurethane Foams ◽  
High Thermal Stability ◽  
Thermally Stable ◽  
Insulating Materials ◽  
Research Results ◽  
Rigid Polyurethane Foams

In this work, the research results of the synthesis and properties of the polyols with the oxamidoester group, obtained in the reaction of N-substituted morpholine-2,3-dione derivatives with excess of alkylene carbonates have been presented. Using these derivatives as polyol components, rigid foamed polyurethane materials of high thermal stability and mechanical strength have been obtained. New polyurethane foams obtained using hydroxypropyl morpholine-2,3-dione derivatives can be used as heat-insulating materials of operating temperature as high as 150°C.

All-carbocycle hydrocarbon thermosets with high thermal stability and robust mechanical strength for low-k interlayer dielectrics

2021 ◽  
Author(s):  
Yudi Feng ◽  
Ke Jin ◽  
Jia Guo ◽  
Changchun Wang
Keyword(s):  
Thermal Stability ◽  
Mechanical Strength ◽  
Dielectric Materials ◽  
High Thermal Stability ◽  
Thermal Stabilities ◽  
Interlayer Dielectric ◽  
Interlayer Dielectrics ◽  
Low Permittivity ◽  
Low K

The development of modern microelectronic industry calls for low permittivity interlayer dielectric materials with excellent thermal stabilities, robust mechanical strength and matching processability. Traditionally, it is difficult to fabricate materials...

scholarly journals High-performance pan-tactic polythioesters with intrinsic crystallinity and chemical recyclability

2020 ◽  
Vol 6 (34) ◽  
pp. eabc0495
Author(s):  
Changxia Shi ◽  
Michael L. McGraw ◽  
Zi-Chen Li ◽  
Luigi Cavallo ◽  
Laura Falivene ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Mechanical Strength ◽  
High Performance ◽  
Rational Design ◽  
Design Strategy ◽  
High Thermal Stability ◽  
High Chemical ◽  
High Mechanical Strength ◽  
Performance Properties ◽  
Trade Offs

Three types of seemingly unyielding trade-offs have continued to challenge the rational design for circular polymers with both high chemical recyclability and high-performance properties: depolymerizability/performance, crystallinity/ductility, and stereo-disorder/crystallinity. Here, we introduce a monomer design strategy based on a bridged bicyclic thiolactone that produces stereo-disordered to perfectly stereo-ordered polythiolactones, all exhibiting high crystallinity and full chemical recyclability. These polythioesters defy aforementioned trade-offs by having an unusual set of desired properties, including intrinsic tacticity-independent crystallinity and chemical recyclability, tunable tacticities from stereo-disorder to perfect stereoregularity, as well as combined high-performance properties such as high thermal stability and crystallinity, and high mechanical strength, ductility, and toughness.

scholarly journals Influence of Different Carboxylic Acid Ligands on Luminescent Properties of Eu(Lc)3phen (Lc = MAA, AA, BA, SA) Complexes

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Jing Zhang ◽  
Le Zhang ◽  
Yan Chen ◽  
Xiaogu Huang ◽  
Lixi Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Carboxylic Acid ◽  
Luminescent Properties ◽  
High Thermal Stability ◽  
Photoluminescence Spectra ◽  
Europium Complexes ◽  
Absorption Intensity ◽  
Uv Absorption Spectra ◽  
The Eu

A series of rare earth europium complexes with different carboxylic acid ligands Eu(Lc)3phen (Lc = MAA, AA, BA, SA) were synthesized. The complexes were characterized by FTIR, TG-DSC, XRD, UV absorption spectra, and photoluminescence spectra (PL) to study the structure, thermal stability, the energy absorption, and luminescent properties of the complexes. The results showed that the series complexes are all with good crystallization and relatively high thermal stability. The differences of the luminescent properties of complexes are caused by the different ligand structures. The absorption intensity of the carboxylic acid ligands, BA, was the strongest, followed by the MAA and AA and SA was the weakest. Therefore, the fluorescence intensity of the Eu(BA)3phen was the strongest, followed by the Eu(MAA)3phen and Eu(AA)3phen and the Eu2(SA)3phen2was the weakest. All complexes showed good luminescence properties.

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