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Polymerization of Oriented Monomers. IV. Polymerization of p ‐Acryloyloxybenzylidene‐ p ‐butylaniline within a Liquid Crystalline Phase
Author(s) -
Paleos C. M.,
Voliotis S.
Publication year - 1979
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197900025
Subject(s) - polymerization , crystallinity , monomer , chemistry , polymer , polymer chemistry , kinetic chain length , phase (matter) , chain growth polymerization , degree of polymerization , bulk polymerization , chemical engineering , solution polymerization , radical polymerization , crystallography , organic chemistry , engineering
The effect of organization of a liquid crystalline monomer polymerized within a mesomorphic phase on its polymer morphology has been investigated. Specifically, p ‐acryloyloxybenzylidene‐ p ‐butylaniline has been polymerized in the mesomorphic phase, which is obtained by melting a mixture of this monomer with p ‐propanoyloxybenzylidene‐ p ‐butylaniline. Destruction of the liquid crystalline phase was avoided during polymerization by employing a monomer to solvent molar ratio equal to 1:3. In addition, the same monomer was polymerized in the isotropic melt of the same mixture. Polymers derived from both modes of polymerization were characterized by X‐ray diffraction and exhibited the same degree of crystallinity (about 70%). It is therefore concluded that monomer orientation does not affect polymer crystallinity and also that crystallinity originates from the strong interaction of polymer side groups or alternatively from the intrinsic tendency of polymers to organize.