Summary
Hybrid star-shaped polyoxazolines having POSS core were prepared by ring-opening polymerization of 2-methyl-2-oxazoline using various octafunctional POSS as an initiator with changing the feed ratio of POSS to 2-methyl-2-oxazoline. The core-first method, which uses an active multifunctional core to initiate growth of polymer chains, was applicable to make hybrid POSS-core star-shaped polyoxazolines. The kinetic rate of the polymerization and the structures of hybrid star-shaped polyoxazolines were characterized by gas chromatography (GC) and 1H NMR, respectively. Their thermal properties were investigated in detail by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).
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Received: 6 November 2002 / Accepted: 20 November 2002
Correspondence to Yoshiki Chujo
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Kim, KM., Ouchi, Y. & Chujo, Y. Synthesis of organic-inorganic star-shaped polyoxazolines using octafunctional silsesquioxane as an initiator. Polymer Bulletin 49, 341–348 (2003). https://doi.org/10.1007/s00289-002-0113-0
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DOI: https://doi.org/10.1007/s00289-002-0113-0