TY - JOUR
AU - Ashida,, Michio
AB - Abstract 2,5-Distyrylpyrazine (DSP) was vaccum-evaporated onto a cleavage surface of potassium chloride. The DSP film was composed of needle-like and laminate crystallites. The electron diffraction pattern from the film showed single crystal patterns projected along either the b-axis or the a-axis. The color of the film changed from yellow to white by photoirradiation. The photoirradiated film was identified as polyDSP containing cyclobutane rings by means of infrared spectroscopy. The electron diffraction pattern from the polymer film showed the similar net pattern as those of the monomer crystal, although the lattice spacings shrank slightiy in the directions of the a- and c-axes and elongated in the direction of the b-axis. The polymer film had extremely high crystallinity and the 200 and 020 lattice fringes with spacings of 0.91 nm and 0.54 nm, respectively, were observed In the polymer film. From the electron microscopic observation, it was evident that polymerization of monomer crystal proceeded through a direct rearrangement to the polymer crystal. high resolution electron microscopy, organic thin film, 2,5-distyrylpyrazine, photopolymerization, solid state reaction This content is only available as a PDF. © Japanese Society of Electron Microscopy
TI - Characterization and Photopolymerization of 2,5-Distyrylpyrazine Film
JF - Journal of Electron Microscopy
DO - 10.1093/oxfordjournals.jmicro.a050796
DA - 1990-06-01
UR - https://www.deepdyve.com/lp/oxford-university-press/characterization-and-photopolymerization-of-2-5-distyrylpyrazine-film-uS2bSSDM0y
SP - 160
EP - 163
VL - 39
IS - 3
DP - DeepDyve
ER -