ISSN:
0887-6266
Keywords:
solid-state reaction
;
structural transitions
;
diacetylenes
;
polymerization
;
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Microcalorimetry was used to study the thermal polymerization and the structural instabilities in hydrogenated (pTS-H) and deuterated (pTS-D) diacetylene 2,4-hexadiynylene bis(p-toluenesulfonate). In the induction period, the polymerization reaction proceeds about seven times faster in pTS-D than in pTS-H. Whereas the phase transitions of pure pTS-H and pTS-D monomer crystals and of pure pTS-H and pTS-D polymer crystals are very similar, the situation is completely different for mixed monomer-polymer crystals of pTS-H and pTS-D. The results are interpreted by studying comparative influence of the chain lengths for pTS-H and pTS-D oligomers. A comparison is made between these results and previous experimental results obtained from dielectric measurements, UV-spectroscopy, X-ray, and elastic neutron scattering. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 789-798, 1997
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
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