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<p>Polymer brushes carrying poly(ethylene oxide), PEO, or poly(styrene oxide), PStO, branches along with brushes containing both PEO and PStO side chains were prepared via anionic ring opening and ring opening metathesis, ROMP, polymerization techniques, and the macromonomer methodology. The polymers were characterized by size exclusion chromatography, SEC, and NMR spectroscopy, revealing that well-defined polymeric products were obtained. These brushes were blended with linear PEO samples of different molecular weights and were studied employing differential scanning calorimetry, DSC; thermogravimetric analysis, TGA; and differential thermogravimetry, DTG, methodologies. The composition of the blend in polymer brushes, the chemical nature of the brush, and the macromolecular architecture were tested to verify their effect on the degree of crystallinity and the melting point of the linear PEO samples. These results will enhance our knowledge on how possible it is to manipulate the crystallinity of PEO and at the same time improve the mechanical properties, opening a new route for future applications.</p>

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Blends of linear poly(ethylene oxide) with poly(ethylene oxide) and poly(styrene oxide) brushes. Synthesis, characterization, and study of their thermal properties

  • 期刊论文

  • 发表日期：

    2025年8月20日

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  • Christos Zisis,
  • Marinos Pitsikalis

摘要

Polymer brushes carrying poly(ethylene oxide), PEO, or poly(styrene oxide), PStO, branches along with brushes containing both PEO and PStO side chains were prepared via anionic ring opening and ring opening metathesis, ROMP, polymerization techniques, and the macromonomer methodology. The polymers were characterized by size exclusion chromatography, SEC, and NMR spectroscopy, revealing that well-defined polymeric products were obtained. These brushes were blended with linear PEO samples of different molecular weights and were studied employing differential scanning calorimetry, DSC; thermogravimetric analysis, TGA; and differential thermogravimetry, DTG, methodologies. The composition of the blend in polymer brushes, the chemical nature of the brush, and the macromolecular architecture were tested to verify their effect on the degree of crystallinity and the melting point of the linear PEO samples. These results will enhance our knowledge on how possible it is to manipulate the crystallinity of PEO and at the same time improve the mechanical properties, opening a new route for future applications.