Glycidyl Azide Polymer Crosslinked Through Triazoles by Click Chemistry: Curing, Mechanical and Thermal Properties

2013 ◽  
Vol 38 (4) ◽  
pp. 525-532 ◽  
Author(s):  
Sasidhara K. Reshmi ◽  
K. P. Vijayalakshmi ◽  
Deepthi Thomas ◽  
E. Arunan ◽  
C. P. Reghunadhan Nair
Keyword(s):  
Thermal Properties ◽  
Click Chemistry ◽  
Mechanical And Thermal Properties ◽  
Glycidyl Azide Polymer ◽  
Glycidyl Azide

scholarly journals Mechanical and Thermal Properties of Polyether Polytriazole Elastomers Formed by Click-Chemical Reaction Curing Glycidyl Azide Polymer

Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1988 ◽  
Author(s):  
Liming He ◽  
Jun Zhou ◽  
Yutao Wang ◽  
Zhongliang Ma ◽  
Chunlin Chen
Keyword(s):  
Click Reaction ◽  
Hot Spot ◽  
Tensile Tests ◽  
Mechanical Analysis ◽  
Random Copolymers ◽  
Mechanical And Thermal Properties ◽  
Glycidyl Azide Polymer ◽  
Ordered Structures ◽  
The Cross ◽  
Glycidyl Azide

Energetic binders are a research hot-spot, and much emphasis has been placed on their mechanical properties. In this study, propargyl-terminated ethylene oxide-tetrahydrofuran copolymer (PTPET) was synthesized. Then, PTPET and low-molecular-weight ester-terminated glycidyl azide polymer (GAP) were reacted by the click reaction without using catalysts to obtain a polyether polytriazole elastomer. Through tensile tests, where R = 0.5, the tensile strength reached 0.332 MPa, with an elongation at break of 897.1%. Swelling tests were used to measure the cross-linked network and showed that the cross-linked network regularity was reduced as R increased. The same conclusions were confirmed by dynamic mechanical analysis (DMA). In DMA curves, Tg was around −70 to −65 °C, and a small amount of crystallization appeared at between −50 and −30 °C, because locally ordered structures were also present in random copolymers, thereby forming localized crystals. Their thermal performance was tested by Differential Scanning Calorimeter (DSC) and Thermal Gravimetric Analyzer (TG), and the main mass loss occurred at around 350 to 450 °C, which meant that they were stable. In conclusion, the polyether polytriazole elastomer can be used as a binder in a composite propellant.

The highly sensitive and facile colorimetric detection of the glycidyl azide polymer based on propargylamine functionalized gold nanoparticles using click chemistry

2015 ◽  
Vol 51 (60) ◽  
pp. 12092-12094 ◽  
Author(s):  
Yi He ◽  
Yun Liang ◽  
Dunju Wang
Keyword(s):  
Gold Nanoparticles ◽  
Click Chemistry ◽  
Colorimetric Detection ◽  
Colorimetric Sensor ◽  
Glycidyl Azide Polymer ◽  
Functionalized Gold Nanoparticles ◽  
Highly Sensitive ◽  
Glycidyl Azide

A highly sensitive and facile colorimetric sensor for the glycidyl azide polymer explosive was developed based on propargylamine functionalized gold nanoparticles using click chemistry.

DEVELOPMENT OF A DIRECT INJECTION GAS-HYBRID ROCKET SYSTEM USING GLYCIDYL AZIDE POLYMER

2019 ◽  
Vol 18 (2) ◽  
pp. 157-170
Author(s):  
Yutaka Wada ◽  
S. Hatano ◽  
Ayana Banno ◽  
Yo Kawabata ◽  
Hiroshi Hasegawa ◽  
...  
Keyword(s):  
Direct Injection ◽  
Hybrid Rocket ◽  
Glycidyl Azide Polymer ◽  
Rocket System ◽  
Glycidyl Azide

Mechanical and thermal characterization of grafted PP-NCC nanocomposites

2019 ◽  
pp. 089270571987822
Author(s):  
Saud Aldajah ◽  
Mohammad Y Al-Haik ◽  
Waseem Siddique ◽  
Mohammad M Kabir ◽  
Yousef Haik
Keyword(s):  
Thermal Properties ◽  
Interfacial Adhesion ◽  
Thermal Characterization ◽  
Mechanical And Thermal Properties ◽  
Screw Extruder ◽  
Scanning Calorimetry ◽  
Three Point Bending ◽  
Twin Screw ◽  
Thermal Stability Of

This study reveals the enhancement of mechanical and thermal properties of maleic anhydride-grafted polypropylene (PP- g-MA) with the addition of nanocrystalline cellulose (NCC). A nanocomposite was manufactured by blending various percentages of PP, MA, and NCC nanoparticles by means of a twin-screw extruder. The influence of varying the percentages of NCC on the mechanical and thermal behavior of the nanocomposite was studied by performing three-point bending, nanoindentation, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy tests. The novelty of this study stems on the NCC nanoparticles and their ability to enhance the mechanical and thermal properties of PP. Three-point bending and nanoindentation tests revealed improvement in the mechanical properties in terms of strength, modulus, and hardness of the PP- g-MA nanocomposites as the addition of NCC increased. SEM showed homogeneity between the mixtures which proved the presence of interfacial adhesion between the PP- g-MA incorporated with NCC nanoparticles that was confirmed by the FTIR results. DSC and TGA measurements showed that the thermal stability of the nanocomposites was not compromised due to the addition of the coupling agent and reinforced nanoparticles.

Sign in / Sign up

Export Citation Format

Share Document