TY - JOUR
T1 - Solid-State Polymerization of Diacetylene Microcrystals
AU - Iida, Rieko
AU - Kamatani, Hirokazu
AU - Kasai, Hitoshi
AU - Okada, Shuji
AU - Oikawa, Hidetoshi
AU - Matsuda, Hiro
AU - Kakuta, Atsushi
AU - Nakanishi, Hachiro
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1995/10/1
Y1 - 1995/10/1
N2 - Microcrystals of two different types of diacetylene monomers, i.e. 4BCMU known for giving a soluble polydiacetylene and 14-8 ADA known as an amphiphilic diacetylene, were prepared and in their solid-state polymerization behaviors were investigated. The polymerization of 4BCMU proceeded quantitatively in the perfect crystalline lattice to give blue-colored polymer crystals. Averaged molecular weight of poly-4BCMU was found to be proportional to microcrystal size, implying that the solid-state polymerization proceeds from one end to the other end of microcrystals. 14-8 ADA microcrystals gave very stable water dispersion even after polymerization, so that the detailed analysis of polymerization behaviors was possible. Size-dependent spectral change and final conversion found for 14-8 ADA were discussed in terms of strain and thermal motion of the crystal lattice.
AB - Microcrystals of two different types of diacetylene monomers, i.e. 4BCMU known for giving a soluble polydiacetylene and 14-8 ADA known as an amphiphilic diacetylene, were prepared and in their solid-state polymerization behaviors were investigated. The polymerization of 4BCMU proceeded quantitatively in the perfect crystalline lattice to give blue-colored polymer crystals. Averaged molecular weight of poly-4BCMU was found to be proportional to microcrystal size, implying that the solid-state polymerization proceeds from one end to the other end of microcrystals. 14-8 ADA microcrystals gave very stable water dispersion even after polymerization, so that the detailed analysis of polymerization behaviors was possible. Size-dependent spectral change and final conversion found for 14-8 ADA were discussed in terms of strain and thermal motion of the crystal lattice.
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U2 - 10.1080/10587259508033979
DO - 10.1080/10587259508033979
M3 - Article
AN - SCOPUS:84972812608
SN - 1542-1406
VL - 267
SP - 95
EP - 100
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
IS - 1
ER -