Cyclic olefin copolymers containing both linear polyethylene and poly(ethylene-co-norbornene) segments prepared from chain shuttling copolymerization of ethylene and norbornene

2021 ◽  
Author(s):  
Huan Gao ◽  
Shangtao Chen ◽  
Bin Du ◽  
Zhenyu Dai ◽  
Xu Lu ◽  
...  
Keyword(s):  
Linear Polyethylene ◽  
Cyclic Olefin ◽  
Poly Ethylene ◽  
Cyclic Olefin Copolymers

The semicrystalline polyethylene (PE) and amorphous poly(ethylene-co-norbornene) copolymer have been used in a wide variety of applications, especially in packaging. It is a big challenge to improve the transparency of...

Dynamic birefringence of cyclic olefin copolymers

2005 ◽  
Vol 45 (2) ◽  
pp. 116-123 ◽  
Author(s):  
Gwan Kyo Oh ◽  
Tadashi Inoue
Keyword(s):  
Cyclic Olefin ◽  
Cyclic Olefin Copolymers

Selective synthesis of highly soluble cyclic olefin copolymers with pendant vinyl groups using 1,5-hexadiene as a comonomer

Polymer ◽  
2018 ◽  
Vol 136 ◽  
pp. 109-113 ◽  
Author(s):  
Ryo Tanaka ◽  
Akane Sasaki ◽  
Takuma Takenaka ◽  
Yuushou Nakayama ◽  
Takeshi Shiono
Keyword(s):  
Selective Synthesis ◽  
Cyclic Olefin ◽  
Cyclic Olefin Copolymers

Preparation and properties of cyclic olefin copolymers multiwalled carbon nanotube nanocomposites

2012 ◽  
Vol 126 (3) ◽  
pp. 1121-1128 ◽  
Author(s):  
Zhen-hua Chen ◽  
Changchun Zeng ◽  
Chuck Zhang ◽  
Ben Wang ◽  
Kun Cao ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Cyclic Olefin ◽  
Cyclic Olefin Copolymers

Investigation of morphological, rheological, and mechanical properties of cyclic olefin copolymer/poly(ethylene-co-vinyl acetate) blend films

2017 ◽  
Vol 34 (2) ◽  
pp. 140-159 ◽  
Author(s):  
Ali Durmus ◽  
Mine B Alanalp ◽  
Ismail Aydin
Keyword(s):  
Vinyl Acetate ◽  
Viscoelastic Properties ◽  
Melt Processing ◽  
Test Machine ◽  
Cyclic Olefin Copolymer ◽  
Dynamic Mechanical Analyzer ◽  
Cyclic Olefin ◽  
Dynamic Mechanical ◽  
Poly Ethylene ◽  
Copolymer Poly

In this study, cyclic olefin copolymer/poly(ethylene- co-vinyl acetate) 90/10, 80/20, and 70/30 blends were prepared by melt processing in a twin screw extruder equipped with a cast film haul-off unit to make films. Microstructural, rheological, mechanical, and viscoelastic properties of film samples were investigated by various tests performed in scanning electron microscope, rotational rheometer, dynamic mechanical analyzer, and tensile test machine. We observed that the films exhibited characteristic immiscible “matrix–droplet” or “cocontinuous” blend morphology, depending on the sample composition. Based on the melt rheology and dynamic mechanical analyzer tests, we found that poly(ethylene- co-vinyl acetate) addition changed the viscoelastic properties of cyclic olefin copolymer such as increasing short-term creep strain and relaxation time but reducing relaxation rate in solid state. One can conclude that such effects became more pronounced by adding a compatibilizer (PE-g-MA) at 50% of poly(ethylene- co-vinyl acetate) present in the composition. We also found that poly(ethylene- co-vinyl acetate) addition into cyclic olefin copolymer reduced the Young’s modulus and yield stress and increased the strain at break for the blends.

Impact of simulated biological aging on physicochemical and biocompatibility properties of cyclic olefin copolymers

2019 ◽  
Vol 97 ◽  
pp. 377-387
Author(s):  
Mélisande Bernard ◽  
Emile Jubeli ◽  
Joudi Bakar ◽  
Johanna Saunier ◽  
Najet Yagoubi
Keyword(s):  
Biological Aging ◽  
Cyclic Olefin ◽  
Cyclic Olefin Copolymers

Melt-state miscibility of poly(ethylene-co-1-octene) and linear polyethylene

2007 ◽  
Vol 107 (4) ◽  
pp. 2584-2587 ◽  
Author(s):  
Kyusoon Shin ◽  
Byeong Uk Nam ◽  
Joona Bang ◽  
Jae Young Jho
Keyword(s):  
Linear Polyethylene ◽  
Poly Ethylene
Sign in / Sign up

Export Citation Format

Share Document