✦ LIBER ✦

Phase transfer catalysis of polycondensation processes—III. Liquid-crystalline properties of polyethers with oxetane pendant groups

✍ Scribed by N. Hurduc; V. Bulacovschi; C. Simionescu

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 470 KB
Volume: 28
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(92)90084-f

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✦ Synopsis

Al~traet--The polycondensation of 3,3-bis(chloromethyl)oxacyclobutane with bisphenol-A under phase transfer conditions is reported a possible mesomorphism of these polymers is discussed. Investigations by optical polarization microscopy and DSC are described.

📜 SIMILAR VOLUMES

Phase transfer catalysis of polycondensa

Phase transfer catalysis of polycondensation processes—V. Internal rotation energies in polyethers based on oxetane and bisphenol-A

✍ N. Hurduc; Gh. Surpateanu; V. Bulacovschi 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 176 KB

A~tract--Rotation possibilities and rotational barriers in the polyether chain obtained from bisphenol-A with 3,3-bis(chloromethyl) oxetane were considered. From the computed values, it was concluded that in such structures the bisphenol-A unit might become mesogenic.