Un-Answered Questions { Chemistry }

What is the nature of the bonding interaction between a metal and an olefin? : Polymer Chemistry

540


What does it mean for a molecule or a ligand to be "chiral"? What properties does chirality impart to a molecule? : Polymer Chemistry

524


Explain what is meant by "c2 symmetry" and "mirror plane symmetry". Can a molecule with "mirror plane symmetry" ever be chiral? : Polymer Chemistry

566


How would you describe the orientation of the ligands around the zr center in the homogeneous zirconium catalyst? : Polymer Chemistry

527


Consider the polymerization of 1,2-dichloroethylene, h(cl)c=c(cl)h. What structural variations are possible in poly(1,2-dichloroethylene)? : Polymer Chemistry

702


Why are olefins (alkenes) good monomers for polymerization reactions? : Polymer Chemistry

842


Does ethylene polymerize under mild conditions in the absence of a catalyst? : Polymer Chemistry

760


Why are metals often good catalysts? : Polymer Chemistry

540


Consider the polymerization of vinylidene chloride, ch2=ccl2. What structural variations are possible in poly(vinylidene chloride)? : Polymer Chemistry

908


Why do different polymers have different properties? : Polymer Chemistry

680


How can chemists control which type of polyethylene (ldpe vs. Hdpe) is generated? : Polymer Chemistry

1199


Head-to-tail polymerization of propylene is observed with the [cp2zr(r)]+ catalyst. Explain this result on the basis of molecular-level interactions. : Polymer Chemistry

569


Besides the extent of branching, can you think of any other structural parameters that might lead to differences in physical properties? : Polymer Chemistry

655


What kinds of structural changes accompany bond-breaking and bond-forming in olefin polymerization? : Polymer Chemistry

1202


What are the other ways in which chemists can manipulate the properties of polymers? : Polymer Chemistry

608