THERMODYNAMICS OF POLYOLEFINS AND THE PRO CESSES OF THEIR FORMATION

Using the data of precise calorimeric measurements of the thermodynami c properties for a series of olefins from ethylene to decene and the c orresponding polymers and the thermodynamic parameters of the reaction s of bulk polymerization in the temperature range extending from 5-10 to 330-600 K at standard pressure, the regularities of the variation i n the thermodynamic properties of polyolefins were investigated. The t hermodynamic parameters of the reactions of olefin polymerizations wer e calculated as a function of the composition and structure of the rea gents, their physical states, and the temperature at standard pressure .