Under the conditions of total concentration of monomer being 25-45%, initiator concentration being 0.06-0.1%, emulsifier concentration being 5-9% and polymerization temperature being 303K, the kinetic equation of copolymerization can be expressed: Rp=k[M]0.68[I]1.31[E]0.73.In this paper, above results are explained.
The polymerization process was characterized by a steady-state reaction within the experimental range, and polymerization rate is first order in both the concentration of neodymium compound and monomer,that is,Rp =-d[M]/dt=Kp[Nd][M].
This article tries to demonstrate the phonetic system of Gao-chun Dialect, especially to describe three group of nasal consonant homonyms [m] [n] [η] which can act as syllables independently in Gao-chun Dialect, and also to analyze something related.
The experimental results indicated that the velocity of initial polymerization was in direct proportion to 1/2 power of the catalyst concentration and to 3/2 power of the monomer concentration. The apparent activation energy of polymerization was 49.91 kJ/mol from calculation.
Kinetic charactristics of polyphenol oxidase(PPO)in burdock were studied. The result shows that the optimum pH and temperature are 7.2 and 50℃ respectively,and the maximum velocity is 105.4,the Michaelis constant was 0.16.The effect of inhibitors on the activity of PPO was studied in this paper as well.