SAXS analysis of hyperstructure in carboxylato-telechelic poly(tert.butyl acrylate)'s

C. Maus , F. Fontaine , G. van den Bossche , R. Sobry , R. Jérôme

A new class of Halato-Telechelic Polymers (HTP) has been prepared. Preleminary SAXS results on α, ω-carboxy poly (tert.butyl acrylate)s end-neutralized with Ba, Mg and Na alkoxides show that the "ionic peak" usually observed in ionomers goes undetected. In contrast, a series of peaks appear at very low angles corresponding to Bragg spacings from 70 to 14 nm. The successive peak positions are consistent with a hexagonal structure. In order to confirm this new experimental evidence, the effects of several parameters on the SAXS patterns have been investigated. Samples of various counterions and molecular weigths have been prepared under different conditions. Morphological changes have also been analyzed in the presence of a non-polar solvent (toluene).

Domaines: Articles anciens

C. Maus, F. Fontaine, G. van den Bossche, R. Sobry, R. Jérôme. SAXS analysis of hyperstructure in carboxylato-telechelic poly(tert.butyl acrylate)'s. Journal de Physique IV Proceedings, 1993, 03 (C8), pp.C8-67-C8-70. ⟨10.1051/jp4:1993814⟩. ⟨jpa-00252245⟩