In the bulk polymerization of methyl methacrylate at 60 degress Celisius with azo-bis-isobutyronitrile as the initiator the initial rates of propagation and termination were 8.8x10–4 M/s and 1.7x10–6 M/s, respectively. Predict the molecular weight of the polymer formed in this system, assuming that termination only occurs by combination. Neglect chain transfer reactions for the calculation.
In the bulk polymerization of methyl methacrylate at 60 degress Celisius with azo-bis-isobutyronitrile as the initiator...
In the bulk polymerization of methyl methacrylate (MMA, formula weight: 104) at 60 oC with AIBN as the initiator, the rate of initiation and propagation are 1.7 x 10-6 mol/L-s and 8.8 x 10-4 mol/L-s, respectively. Predict the molecular weight of the polymer formed in this system, if the extent of disproportionation is 70% at 60 oC. (Neglect chain transfer for the calculation.)
for this experiment i got a yield of 0.02g. what is the
theoretical and percentage yield?
STUDENT HANDOUT Synthesis of poly(2-methoxy-542-ethylhexyloxy-1.4-phenyle Purpose of the Experiment ylhexyloxy-1.4-phenylenevinylene (MEH-PPV) The purpose of this experiment is 10 bis bromomethyl)-1-methoxy-4-2- experiment is to synthesize a polymer using a Gilch polymerization of 2,5 methyl)-1-methoxy-4-(2-ethylhexyloxybenzene, to investigate the polymer's photophysica properties, and to understand the mechanism of the polymerization reaction Introduction Polyphenylene vinylenes) or PPVs are highly luminescent polymers that are used for a variety of...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...