scholarly journals Characterization of activated cyclic olefin copolymer: effects of ethylene/norbornene content on the physiochemical properties

The Analyst ◽  
2016 ◽  
Vol 141 (24) ◽  
pp. 6521-6532 ◽  
Author(s):  
Colleen E. O'Neil ◽  
Scott Taylor ◽  
Kumuditha Ratnayake ◽  
Swathi Pullagurla ◽  
Varshni Singh ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Physical Properties ◽  
Cyclic Olefin Copolymer ◽  
Physiochemical Properties ◽  
Cyclic Olefin

The ethylene/norbornene content within cyclic olefin copolymer (COC) is well known to affect the chemical and physical properties of the copolymer, such as the glass transition temperature (Tg) and transparency.

Preparation of novel cyclic olefin copolymer with high glass transition temperature

2013 ◽  
Vol 51 (15) ◽  
pp. 3144-3152 ◽  
Author(s):  
Miao Hong ◽  
Guo-Fan Yang ◽  
Ying-Yun Long ◽  
Shijun Yu ◽  
Yue-Sheng Li
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Cyclic Olefin Copolymer ◽  
High Glass Transition Temperature ◽  
Cyclic Olefin

scholarly journals Design of an n-type low glass transition temperature radical polymer

2021 ◽  
Author(s):  
Teng Chi ◽  
Siddhartha Akkiraju ◽  
Zihao Liang ◽  
Ying Tan ◽  
Ho Joong Kim ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Synthesis And Characterization ◽  
Design Synthesis

We document the design, synthesis, and characterization of the first low glass transition temperature, n-type (i.e., preferentially-reduced) radical polymer.

scholarly journals Polarization and Piezoelectric Properties of a Nitrile Substituted Polyimide

1996 ◽  
Vol 459 ◽  
Author(s):  
Joycelyn Simpson ◽  
Zoubeida Ounaies ◽  
Catharine Fay
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Remanent Polarization ◽  
Piezoelectric Properties ◽  
Synthesis And Characterization

ABSTRACTThis research focuses on the synthesis and characterization of a piezoelectric (β-CN)-APB/ODPA polyimide. The remanent polarization and piezoelectric d31 and g33 coefficients are reported to assess the effect of synthesis variations. Each of the materials exhibits a level of piezoelectricity which increases with temperature. The remanent polarization is retained at temperatures close to the glass transition temperature of the polyimide.

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