Quantitative etching of the polydimethylsiloxane block in a series of polystyrene-polydimethylsiloxane (PS-PDMS) block copolymers is reported. Reacting the block copolymer with anhydrous hydrogen fluoride (HF) renders a nanoporous material with the remaining PS maintaining the original morphology in the bulk. The method is very accurate for analytical determination of the PDMS content in the samples. Several morphologies (BCC, HEX and Gyroid) are conserved in the resulting glassy PS-matrix, as ascertained by small angle X-ray scattering. Especially, films of mm thickness containing secluded spherical nm wide holes of BCC symmetry are produced by this procedure.
|Title of host publication||Book of Abstracts|
|Publication status||Published - 2003|
|Event||Danske Krystallografmøde - Copnhagen, Denmark|
Duration: 1 Jan 2003 → …
Conference number: 33
|Period||01/01/2003 → …|