scholarly journals Effect of Polymer Molecular Mass and Structure on the Mechanical Properties of Polymer–Glass Hybrids

ACS Omega ◽  
2021 ◽  
Author(s):  
Yu Lin Lee ◽  
Daniel W. Lester ◽  
Julian R. Jones ◽  
Theoni K. Georgiou
Keyword(s):  
Mechanical Properties ◽  
Molecular Mass ◽  
Polymer Glass

scholarly journals Proton-conductive coordination polymer glass for solid-state anhydrous proton batteries

2021 ◽  
Vol 12 (16) ◽  
pp. 5818-5824
Author(s):  
Nattapol Ma ◽  
Soracha Kosasang ◽  
Atsushi Yoshida ◽  
Satoshi Horike
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Coordination Polymer ◽  
Proton Battery ◽  
Polymer Glass

Melt-quenched coordination polymer glass shows exclusive H+ conductivity (8.0 × 10−3 S cm−1 at 120 °C, anhydrous) and optimal mechanical properties (42.8 Pa s at 120 °C), enables the operation of an all-solid-state proton battery from RT to 110 °C.

scholarly journals Monitoring the degradation of partly decomposable plastic foils

2014 ◽  
Vol 6 (1) ◽  
pp. 39-44
Author(s):  
Gabriella Rétháti ◽  
Krisztina Pogácsás ◽  
Tamás Heffner ◽  
Barbara Simon ◽  
Imre Czinkota ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Molecular Mass ◽  
Structural Changes ◽  
Thermoplastic Starch ◽  
Medium Density ◽  
Insulating Layer ◽  
Elongation At Break ◽  
One Year ◽  
The One

Abstract We have monitored the behaviour of different polyethylene foils including virgin medium density polyethylene (MDPE), MDPE containing pro-oxydative additives (238, 242) and MDPE with pro-oxydative additives and thermoplastic starch (297) in the soil for a period of one year. A foil based on a blend of polyester and polylactic acid (BASF Ecovio) served as degradable control. The experiment was carried out by weekly measurements of conductivity and capacity of the soil, since the setup was analogous to a condenser, of which the insulating layer was the foil itself. The twelve replications allowed monthly sampling; the specimen taken out from the soil each month were tested visually for thickness, mechanical properties, morphological and structural changes, and molecular mass. Based on the obtained capacity values, we found that among the polyethylene foils, the one that contained thermoplastic starch extenuated the most. This foil had the greatest decrease in tensile strength and elongation at break due to the presence of thermoplastic starch. The starch can completely degrade in the soil; thus, the foil had cracks and pores. The polyethylene foils that contained pro-oxydant additives showed smaller external change compared to the virgin foil, since there was no available UV radiation and oxygen for their degradation. The smallest change occurred in the virgin polyethylene foil. Among the five examined samples, the commercially available BASF foil showed the largest extenuation and external change, and it deteriorated the most in the soil.

Acetylation and molecular mass effects on barrier and mechanical properties of shortfin squid chitosan membranes

2006 ◽  
Vol 42 (12) ◽  
pp. 3277-3285 ◽  
Author(s):  
C. Santos ◽  
P. Seabra ◽  
B. Veleirinho ◽  
I. Delgadillo ◽  
J.A. Lopes da Silva
Keyword(s):  
Mechanical Properties ◽  
Molecular Mass ◽  
Mass Effects ◽  
Chitosan Membranes

scholarly journals Insights into the mechanical properties of a silicone oil gel with a ‘latent’ gelator, 1-octadecylamine, and CO2 as an ‘activator’

2010 ◽  
Vol 6 ◽  
pp. 984-991 ◽  
Author(s):  
Emiliano Carretti ◽  
Mathew George ◽  
Richard G Weiss
Keyword(s):  
Mechanical Properties ◽  
Carbon Dioxide ◽  
Molecular Mass ◽  
Rheological Properties ◽  
Silicone Oil ◽  
Mechanical Measurements

A detailed study of the rheological properties of silicone oil gels, made from a low-molecular-mass organic gelator, a combination of 1-octadecylamine (a latent gelator) and carbon dioxide (an ‘activating’ molecule), is reported. Information gleaned from the mechanical measurements is used to characterize the gel networks and how they respond to temperature and strain. It is shown, for example, that very precise measurements of the gel-to-sol transitions can be obtained from plots of viscosity versus temperature.

Synthesis of Poly(Urethane-Urea)s from Polycarbonate Macrodiols and IPDI with the Addition of Derivant of Propylene Carbonate

2012 ◽  
Vol 499 ◽  
pp. 104-107 ◽  
Author(s):  
Jing Xin Zhu ◽  
Yan Long Ma ◽  
Yao Dong Zhang
Keyword(s):  
Mechanical Properties ◽  
Molecular Mass ◽  
Propylene Carbonate ◽  
Chain Extender ◽  
Biomedical Material ◽  
Aliphatic Polycarbonate

In this paper, poly(urethane-urea)s were synthesized from two aliphatic polycarbonate macrodiols with different molecular mass, isophoronodiisocyanate (IPDI) and a pseudo-chain extender, a derivant of propylene carbonate, which was synthesized by propylene carbonate and 1,6-diaminohexane. The obtained poly(urethane-urea) elastomers exhibit very good mechanical properties, they are colorless and transparent and could be applied in biomedical material field.

scholarly journals Coordination polymer glass from a protic ionic liquid: proton conductivity and mechanical properties as an electrolyte

2020 ◽  
Vol 11 (20) ◽  
pp. 5175-5181 ◽  
Author(s):  
Tomohiro Ogawa ◽  
Kazuki Takahashi ◽  
Sanjog S. Nagarkar ◽  
Koji Ohara ◽  
You-lee Hong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionic Liquid ◽  
Fuel Cell ◽  
Coordination Polymer ◽  
Solid Electrolyte ◽  
Proton Conductivity ◽  
Protic Ionic Liquid ◽  
Proton Conducting ◽  
Polymer Glass

A proton-conducting coordination polymer glass derived from a protic ionic liquid works as a moldable solid electrolyte and the anhydrous fuel cell showed I–V performance of 0.15 W cm−2 at 120 °C.

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