Un-Answered Questions { Chemistry AllOther }

What does stp stand for?

615


What is the role of a catalyst? : Polymer Chemistry

567


Polymer chain growth can be terminated by b-hydride elimination or by reaction with h2. What is one advantage of the h2 reaction? : Polymer Chemistry

671


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

550


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

533


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

579


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

542


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

714


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

881


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

778


Why are metals often good catalysts? : Polymer Chemistry

551


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

963


Why do different polymers have different properties? : Polymer Chemistry

697


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

1221


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

579