Pérez Tejedor, francisco JAvierRodríguez Montoro, ÓscarRodríguez Jiménez, OlgaGarcía Baonza, ValentínNúñez Delgado, Javier2024-07-152024-07-152002-01-01Pérez Tejedor, F. J., Montoro, O. R., Rodríguez-Jiménez, O., Baonza, V. G., & Núñez Delgado, J. (2002). Polymerization at High Pressure of Dimethyl Acetylene: Raman Microscopy, Vibrational Analysis, Calculation of Force Constants and Internal Coordinates. Defect and Diffusion Forum, 208–209, 121–124. https://doi.org/10.4028/www.scientific.net/ddf.208-209.1211662-950https://hdl.handle.net/10115/37960We have measured the Raman spectrum of the dimethyl acetylene in the pressure range 0,1-62 kbar at room temperature. We have found three induced phase transitions at 0.1, 9 and 26 kbar. We have also found a massive polymerization reaction in this system which begins around 35 kbar. A force field treatment has been performed as a function of pressure, which allows analyzing the behaviour of the force constants with pressure for the dimethyl-acetylene.engDimethyl acetyleneHigh pressurePhase transitionRaman Spectroscopyinfo:eu-repo/semantics/article10.4028/www.scientific.net/ddf.208-209.121info:eu-repo/semantics/closedAccess