Reactive blending of polysulfone (PSU) and polyamide 6 (PA) was carried out at 2O:SO (PSU-PA) wt. ratio using a gram-scale mixer (Mini-Max Molder). Three PSUs with different functional groups were prepared and used: maleic anhydride-grafted PSU (PSU-MAH), carboxylic acid-grafted PSU (PSU-COOH) and phthalic anhydride-terminated PSU (PSU-PhAH), having almost same molecular weight (M, = ca. 20 k) and functional group content (ca. 90 pmole g-l). The change in PSU particle size with mixing time was investigated by light scattering and transmission electron microscopy. As expected, all reactive systems yielded finer particles via faster size reduction process, compared with non-reactive system. Attainable particle diameters were: ca. 1 pm for non-functionalized PSU, ca.
Посилання на статтю:
Reactive blending of polysulfone with polyamide: a potential for solventfree preparation of the block copolymer / Joel Ibuki, Piyada Charoensirisomboon, Tsuneo Chiba, Toshiaki Ougizawa, Takashi Inoue, Martin Weber, Edhard Kochb // Polymer. – 1999. – N 40. – P. 647–653.