Intracrystalline Dynamics in Oligomer‐Diluted Poly(Ethylene Oxide) | Zendy

Schäfer Mareen | Zendy; Wallstein Niklas | Zendy; Schulz Martha | Zendy; ThurnAlbrecht Thomas | Zendy; Saalwächter Kay | Zendy

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Intracrystalline Dynamics in Oligomer‐Diluted Poly(Ethylene Oxide)

Author(s) -

Schäfer Mareen,

Wallstein Niklas,

Schulz Martha,

ThurnAlbrecht Thomas,

Saalwächter Kay

Publication year - 2020

Publication title -

macromolecular chemistry and physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.57

H-Index - 112

eISSN - 1521-3935

pISSN - 1022-1352

DOI - 10.1002/macp.201900393

Subject(s) - oligomer , lamellar structure , poly ethylene , monomer , materials science , ethylene oxide , amorphous solid , polymer , polymer chemistry , phase (matter) , crystal (programming language) , spherulite (polymer physics) , ductility (earth science) , oxide , chemical engineering , creep , crystallography , ethylene , composite material , chemistry , copolymer , organic chemistry , programming language , computer science , metallurgy , engineering , catalysis

Solid‐state creep, ductility, and drawability are relevant mechanical properties of “crystal‐mobile” polymers, related to a large‐scale chain transport through the crystal, which is in turn mediated by intracrystalline monomer jumps. Here, high‐ M w poly(ethylene oxide) is used as a well‐controlled model system, modulating the properties of the amorphous phase by diluting with a non‐crystallized oligomer. Faster intracrystalline motions are found upon oligomer addition, indicating little changes in the fold surface and a dominant influence of the somewhat reduced lamellar thickness.

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