| 摘要 |
Polymerizable mass comprises: (a) acrylate and/or methacrylate; (b) 0.05-70 wt.% of silicon dioxide particles with an average particle size of 1-150 nm, and polymerizable groups comprising methacrylol-, acryloyl-, styryl-, itaconyl-, crotonyl-, vinyl-, allyl- and/or alkenyl-groups on its surface; and (c) maximum 2 wt.% of crosslinking molecule. Independent claims are included for: (1) a polymer material, obtained by curing the polymerizable mass, where the polymer material, preferably thermoformable article is shape-memory material or stretched glazing materials; (2) a stretched polymer material, obtained by heating the polymer material at a temperature of greater than glass transition temperature (Tg), preferably Tg+50K, stretching or compressing the material to at least 5 (preferably 10)% in at least spatial direction, and cooling the material at a temperature of less than Tg; and (3) preparing the polymer material, comprising preparing the polymerizable mass, adding a polymerization initiator, implementing a partial polymerization at a temperature of less than Tg, preferably Tg-20K until at least 50% of the monomers are polymerized, and terminating the polymerization at a temperature greater than Tg-20K, preferably Tg. |
