Premium
Simultaneous SAXS and WAXS Study on the Guest Exchange Process of Syndiotactic Polystyrene: Crystalline Complex Formation with Triethylene Glycol Dimethyl Ether
Author(s) -
Kaneko Fumitoshi,
Seto Naoki,
Sasaki Keita,
Sakurai Shinichi,
Kimura Tsuyoshi
Publication year - 2013
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201300001
Subject(s) - triethylene glycol , small angle x ray scattering , polystyrene , chloroform , lamellar structure , tacticity , ether , polymer chemistry , dimethyl ether , molecule , chemistry , materials science , organic chemistry , crystallography , scattering , polymer , polymerization , catalysis , physics , optics
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 ϵ cocrystal during this process and the influence of the amount of chloroform on the incubation time are also studied.