ceiling temperature

ceiling temperature

[′sēl·iŋ ‚tem·prə·chər]
(organic chemistry)
For addition (chain) polymerization, the temperature at which the propagation and depropagation rates are equal, that is, the net rate of polymer formation is zero. Above the ceiling temperture, depolymerization, an unzipping reaction to reform monomer, occurs.
References in periodicals archive ?
It has been reported that 220[degrees]C is the ceiling temperature for free radical polymerization of methyl methacrylate.
The MMA/[Alpha]-MS system has long been used as a theoretical study case due to its unusual behaviour above 60 [degrees] C, influenced mainly by the low ceiling temperature of [Alpha]-MS.
Photo 5 shows a comparison of the floor and ceiling temperature in Equinox House on a hot day.
The two other effects identified here are the ceiling temperature and phase separation.
8[degrees]C) below the chilled ceiling temperature.
The wall plume model is integrated with a multilayer space thermal model to predict the stratification height in the space, the vertical distribution of wall and air temperatures as a function of the chilled ceiling temperature and space air supply conditions.
Thus, the higher the conversion, the lower the monomer concentration and consequently the lower the ceiling temperature.
Figure 5 shows the time plots of the vertical and ceiling temperature profiles at the fire location for the tests, respectively.