CHEM 156 Study Guide - Quiz Guide: Nuclear Magnetic Resonance Spectroscopy, Methyl Methacrylate, Radical Polymerization
condensation
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Important step in sol-gel chemistry:
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covalent network of oxides, amorphous unless specially treated
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General description of materials made from sol-gel process:
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Si(C2H5)4
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Theres no oxygen
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Chemicals least suitable to be monomer for sol-gel material synthesis:
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HCl
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Chemical usually not involved in stober silica nanoparticle synthesis:
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Nuclear magnetic resonance spectroscopy (NMR)
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Usually not involved in characterizing size of silica nanoparticles:
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Quiz 1:
Fluorescence
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Process called when electron decays from excited state to ground state:
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Quantum confinement of material
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Chemical composition of material
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Crystal structure of material
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Optical properties of materials can depend on:
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Longer wavelength, lower energy photon emission
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Compared to small quantum dots, fluorescence processes in larger quantum
dots correspond to:
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Longer; a stokes shift
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For the same size CdSe nanocrystal, compared to the absorption peak,
emission peak will have ___ wavelength due to ___.
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When the digital thermometer reads 225 degrees C
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For synthesizing CdSe by this method, the Se precursor should be injected
into the CdO solution ___.
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Quiz 2:
Chain growth
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Polymerization mechanisms that best describes the free radical
polymerization of methyl methacrylate (MMA)
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Termination, radical recombination, and disproportionation
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Process that is slowed down in living radical polymerization reactions
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Chemicals that will be used as radical initiator in free radical polymerization
of methyl methacrylate (MMA)
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Quiz 3:
Quizzes
Monday, June 4, 2018
4:34 AM
Chem 156 Page 1
Document Summary
Quiz 1: condensation covalent network of oxides, amorphous unless specially treated. General description of materials made from sol-gel process: Chemicals least suitable to be monomer for sol-gel material synthesis: Chemical usually not involved in stober silica nanoparticle synthesis: Usually not involved in characterizing size of silica nanoparticles: Process called when electron decays from excited state to ground state: Compared to small quantum dots, fluorescence processes in larger quantum dots correspond to: For the same size cdse nanocrystal, compared to the absorption peak, emission peak will have ___ wavelength due to ___. For synthesizing cdse by this method, the se precursor should be injected into the cdo solution ___. When the digital thermometer reads 225 degrees c. Polymerization mechanisms that best describes the free radical polymerization of methyl methacrylate (mma) Process that is slowed down in living radical polymerization reactions. Chemicals that will be used as radical initiator in free radical polymerization of methyl methacrylate (mma)
