Crystalline Complex of Syndiotactic Polystyrene with Poly(ethylene Glycol) Dimethyl Ethers

✍ Scribed by Fumitoshi Kaneko; Keita Sasaki

• Book ID: 102497621
• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 399 KB
• Volume: 32
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.201100136

✦ Synopsis

Abstract

It has been clarified that syndiotactic polystyrene (sPS) forms co‐crystalline structures with polyethylene glycol dimethyl ethers (PEGDMEs) with molecular weights ranging from 178 to 1 000 g · mol^−1^ through a guest exchange procedure assisted by a plasticizing agent. The PEGDME molecules are incorporated into the spaces between sPS polymer sheets consisting of (T~2~G~2~)~2~ helices. The results of X‐ray diffraction and gravimetric measurements suggest that one or less molecules are included per unit cell for PEGDME with average molecular weight of 1 000 g · mol^−1^, which indicates the possibility that longer polymeric molecules can be introduced into sPS lattices with multiple site occupation. magnified image