UV curing of organic-inorganic hybrid coatings containing polyhedral oligomeric silsesquioxane blocks

作者：Amerio Ezio^*; Sangermano Marco; Colucci Giovanna; Malucelli Giulio; Messori Massimo; Taurino Rosa; Fabbri Paola

来源：Macromolecular Materials and Engineering, 2008, 293(8): 700-707.

DOI：10.1002/mame.200800080

• hybrid coatings
• oligomeric silsesquioxane
• scratch resistance
• UV curing

Hybrid nanocomposite coatings were prepared by the UV-curing technique with a methacrylic oligomer and multifunctional methacrylic polyhedral oligomeric silsesquioxane blocks (POSS(R)). The results obtained from the polyhedral compounds were compared with those of a disordered framework obtained by the condensation of a silica precursor (MEMO). The inorganic domains generated during synthesis created constraints in movement of polymer segments, which reflected in an increase in T(g) of the hybrid nanocomposite coatings. The films were transparent. The random structure er obtained by the condensation of the MEMO showed a strong effect on T. than that observed by introducing POSS((R)). The effect of inorganic domains reflected on thermal stability, surface hardness and mechanical properties of the hybrid nano-composite coatings.

• 出版日期2008-8-13