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11 Nov 2019
CSlet the copolymerizations to low conversions 4 0.16 mol dm-3 solution (3.50 cm3) of s-butyllithium in toluene was added to a solution of sty- rene (8.40 g) in toluene (200 cmP). After complete conversion of the styrene, isoprene (28.00 g) was added. When the isoprene had completely polymerized, the reaction was completed by addi- tion of a 0.10 mol cm-3 solution (2.80 cm2) of dichloromethane in toluene. (a) Write down the reactions occurring in each stage of this reaction sequence and 94 show the structure of the final polymer. (b) Evaluate the relevant degrees of polymerization and the corresponding molar masses for the final polymer.
CSlet the copolymerizations to low conversions 4 0.16 mol dm-3 solution (3.50 cm3) of s-butyllithium in toluene was added to a solution of sty- rene (8.40 g) in toluene (200 cmP). After complete conversion of the styrene, isoprene (28.00 g) was added. When the isoprene had completely polymerized, the reaction was completed by addi- tion of a 0.10 mol cm-3 solution (2.80 cm2) of dichloromethane in toluene. (a) Write down the reactions occurring in each stage of this reaction sequence and 94 show the structure of the final polymer. (b) Evaluate the relevant degrees of polymerization and the corresponding molar masses for the final polymer.
Hubert KochLv2
6 Oct 2019