Kim, DW Hwang, SS Hong, SM Lee, EC 2024-01-21T13:44:05Z 2024-01-21T13:44:05Z 2021-09-04 2000-07 0032-3896 https://pubs.kist.re.kr/handle/201004/141270 Phase separation morphology in the thin blend him of polyphenylsilsesquioxane (PPSQ) and hydroxyl-functionalized polystyrene (PSOH) was investigated. PSOH was synthesized by anionic polymerization and identified with TLC,H-1 NMR, and GPC. The two polymers were dissolved in a common solvent and the thin film was prepared by spincoating. Atomic force microscopy (AFM) has been used to investigate the surface morphology of the thin blend films. In 20% PPSQ and 80% PSOH blends, the PPSQ-rich phase was uniformly dispersed like granules and domain size was as small as 100 nm. Comparing it with the PPSQ/PS blend with the same content of PPSQ, the domain size is about one third of that of the PPSQ/PS blend. This enhanced miscibility is believed to result from intermolecular hydrogen bonding between the PPSQ phase and the PSOH phase, which was verified by IR investigation. However, the PPSQ/PSOH (80/ 20) blend showed morphology of the so large domain distributed irregularly. The size of dispersed phase ranged from 500 nm to 1500 nm. English SOC POLYMER SCIENCE JAPAN BONDED POLYMER BLENDS GROUP ACCESSIBILITY POLY(PHENYLSILSESQUIOXANE) TRICHLOROPHENYLSILANE POLYSILSESQUIOXANES POLYCONDENSATION MISCIBILITY COPOLYMERS FILMS AFM Surface morphology of polyphenylsilsesquioxanes/hydroxyl-functionalized polystyrene blends investigated by atomic force microscopy Article 10.1295/polymj.32.531 1 POLYMER JOURNAL, v.32, no.7, pp.531 - 536 POLYMER JOURNAL 32 7 531 536 scie scopus 000089083400001 2-s2.0-0033703346 Polymer Science Polymer Science Article BONDED POLYMER BLENDS GROUP ACCESSIBILITY POLY(PHENYLSILSESQUIOXANE) TRICHLOROPHENYLSILANE POLYSILSESQUIOXANES POLYCONDENSATION MISCIBILITY COPOLYMERS FILMS AFM hydroxyl-functionalized polystyrene polyphenylsilsquioxanes atomic force microscopy phase behavior surface morphology