Polymer Chemistry: 1. (20pt) This question is concerned with a comparison between step and chain polymerization….

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Polymer Chemistry: 1. (20pt) This question is concerned with a comparison between step and chain polymerization….

Polymer Chemistry:

1. (20pt) This question is concerned with a comparison between step and chain polymerization. A. Indicate which of these statements is appropriate to step and which to chain processes: a. High MW obtained initially and continuously. b. High MW at high conversion. 2. a. Monomer concentration decreases rapidly in early stages of reaction. b. Monomer concentration decreases continuously throughout reaction. 3. a. Reaction mixture contains only high polymer, monomer and reactive species. b. Reaction mixture contains a range of different sized species. B. Discuss the reasons for your choice in any one of the sections in part A in terms of the mechanisms of step and chain polymerization.
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