Viscoelasticity, Tensile Properties, and Microstructure Development in Cyclic Olefin Copolymer/Polyolefin Elastomer Blends was written by Pei, Xiaoshan;Li, Yanxiao;Zhao, Shicheng;He, Xuelian. And the article was included in Macromolecular Chemistry and Physics in 2022.COA of Formula: C73H108O12 This article mentions the following:
The new ethylene/cyclic olefin copolymers (COCs) are a major breakthrough in traditional polyolefins made available by metallocenes, but its high brittleness restricts the applications. Ethylene/1-octene copolymer (POE) with similar backbones is blended with COCs to compensate the rigidity of cyclic segments. Field emission scanning electron microscope photos and Raman spectra demonstrate the existence of abundant phase interfaces between POE and COC, and the phase structure changes from spherical droplets, of partial continuity to cocontinuity with rising POE components. The phase changes are considered as corresponding to the formation, expansion, and coalescence of droplets at melting state according to Van Gurp curves, Han plot, and Cole-Cole plot. Viscoelastic data show that the storage modulus, loss modulus, and complex viscosity reach a high value at medium POE contents. Furthermore, the tensile strength and fracture energy increases and then decreases, the elongation at break increases and Young’s modulus reduces with the increment of POE percentage. Because of the large spherical and ellipsoidal structures and abundant interfaces, the synchronous reinforcement and toughness come true at a medium ratio of POEs. Dynamic mech. anal. confirms the existence of the interfacial layer, and the interfacial layer becomes more pronounced with the rising POE contents exactly as the morphol. and rheol. findings. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8COA of Formula: C73H108O12).
2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.COA of Formula: C73H108O12
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics