ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Three acrylate monomers having mesogenic moieties based on 4-(n)-alkyloxy-4′-(2-chloro-propanoyloxy)biphenyl (n = 6, 8 or 10) have been synthesized. There is no evidence for liquid-crystal properties in any of the three new monomers. The corresponding polymers have been prepared by free-radical polymerization. Their liquid-crystal behavior has been investigated by differential scanning calorimetry, polarized optical microscopy, and X-ray diffraction. On cooling from the isotropic liquid, smectic A (SA), smectic B (SB) and crystalline phases (probably crystal-like SE phases) have been evidenced. It should be noted that the chlorine atoms in the chiral groups do impose a local ordering of the mesogenic side groups.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1993.021940227