Besides the extent of branching, can you think of any other structural parameters that might lead to differences in physical properties? : Polymer Chemistry
What kinds of structural changes accompany bond-breaking and bond-forming in olefin polymerization? : Polymer Chemistry
What are the other ways in which chemists can manipulate the properties of polymers? : Polymer Chemistry
Examine samples of ldpe (sandwich bag, squeeze bottle) and hdpe (milk jug, grocery bag). What are some of the differences in the physical properties of these substances? : Polymer Chemistry
A polymer's structure influences its physical properties. Describe two structural variations that are possible for polypropylene but not for polyethylene. : Polymer Chemistry
What are some of the polymers that you encounter every day? Describe their physical properties. : Polymer Chemistry
Atactic polypropylene is always produced with the [cp2zr(r)]+ catalyst. Explain this on the basis of molecular-level interactions. : Polymer Chemistry
What is the difference between a heterogeneous and a homogeneous catalyst? What are some of the advantages of homogeneous catalysts? : Polymer Chemistry
"Co-polymers" consist of two different monomers ("a" and "b") joined in an alternating fashion (ababab...). Block co-polymers also consist of two different monomers, but in this case blocks of polymer containing only a units are joined to blocks of polymer containing only b units (aaaaabbbbb...). How might block co-polymers be synthesized? : Polymer Chemistry
Define corrosion? : Electrochemistry Corrosion
Define an electro chemical cell. Give one example? : Electrochemistry Corrosion
How an electrochemical is measured? Define emf of an electrochemical cell? : Electrochemistry Corrosion
Write the significance of electrochemical series? : Electrochemistry Corrosion
What are the differences between chemical and electrochemical corrosion? : Electrochemistry Corrosion
What are the methods used to control the corrosion? : Electrochemistry Corrosion
