作者: Anatolij N. Ntkitin , Alexander V. Evseev
DOI: 10.1002/MATS.1997.040060610
关键词: Radical 、 Photopolymer 、 Constant (mathematics) 、 Analytical chemistry 、 Radical polymerization 、 Polymer chemistry 、 Polymerization 、 Laser 、 Chemistry 、 Molar mass distribution 、 Reaction rate constant 、 Inorganic chemistry 、 Organic chemistry 、 Materials Chemistry 、 Polymers and Plastics 、 Condensed matter physics
摘要: For polymerization initiated by an arbitrary sequence of laser pulses a numerical technique for calculating molecular weight distributions (MWDs) is developed, which takes into consideration the chain length dependence termination rate constant k t . The MWDs methyl methacrylate and styrene are calculated use 0 values (for law ij = (i) -a radicals with i) averages (i, j) constants different degrees polymerization) taken from literature. dependences overall (k ) on initiation parameters (pulse repetition (v) pulse intensity periodic pulses) presented. Two methods proposed determination : a) experiments where monomer-to-polymer conversions per determined v; b) packets p (the propagation), can be simultaneously MWD. both simple analytical equations derived evaluation constants. limits application MWD calculation.