期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 214, 期 17, 页码 1893-1900出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201300001
关键词
cocrystals; guest exchange; simultaneous SAXS and WAXS measurements; syndiotactic polystyrene
资金
- Japan Society for the Promotion of Science (JSPS) [09014728]
- Grants-in-Aid for Scientific Research [25410014] Funding Source: KAKEN
Syndiotactic polystyrene (sPS) forms cocrystals with a variety of chemical compounds. The guest molecules can be easily replaced with other kinds of molecules under certain conditions. The guest-exchange process, on exposure to liquid triethylene glycol dimethyl ether (TEGDME), is followed by time-resolved simultaneous small-angle and wide-angle X-ray scattering to clarify the structure changes in molecular-level and higher-order structures. It is clarified that the exchange from the original guest chloroform to the new guest TEGDME takes place mainly after a certain incubation time, in parallel with the expansion of the lamellar period. The occurrence of the E cocrystal during this process and the influence of the amount of chloroform on the incubation time are also studied.
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