A sample of polystyrene prepared by bulk polymerization at 60°C using radioactive 14C-AIBN as initiator was found to have a number average molar mass (Mn) of 1000 kg/mol and a radioactivity of 6 x 103 counts/(s. g). Given that the 14C-AIBN has a radioactivity of 6x109 counts/(s. mol). Determine the mode of termination that operated during preparation of the polystyrene sample. (Note: bulk polymerization means that no solvent is used, and the reaction is carried out in pure liquid monomer).
Answers: 1
Another question on Chemistry
Chemistry, 22.06.2019 08:30
Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?
Answers: 2
Chemistry, 23.06.2019 00:20
4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound
Answers: 3
Chemistry, 23.06.2019 09:20
La reaccion entre monoxido de nitrogeno (no) y oxigeno para formardioxido de nitrogeno (no2) es un paso determinante para la formacion del smog, la reaccion es la siguiente: 2no + o2 = 2no2 cual sera el numero de moles de no2 que se formaran por la reaccion completa de 8 moles de oxigeno con suficiente monoxido?
Answers: 1
You know the right answer?
A sample of polystyrene prepared by bulk polymerization at 60°C using radioactive 14C-AIBN as initia...
Questions
Mathematics, 12.02.2021 21:50
Computers and Technology, 12.02.2021 21:50
Mathematics, 12.02.2021 21:50
Mathematics, 12.02.2021 21:50
Biology, 12.02.2021 21:50
Mathematics, 12.02.2021 21:50
English, 12.02.2021 21:50
Mathematics, 12.02.2021 21:50
Mathematics, 12.02.2021 21:50
