Does ethylene polymerize under mild conditions in the absence of a catalyst? : Polymer Chemistry531
Consider the polymerization of vinylidene chloride, ch2=ccl2. What structural variations are possible in poly(vinylidene chloride)? : Polymer Chemistry512
How can chemists control which type of polyethylene (ldpe vs. Hdpe) is generated? : Polymer Chemistry644
Head-to-tail polymerization of propylene is observed with the [cp2zr(r)]+ catalyst. Explain this result on the basis of molecular-level interactions. : Polymer Chemistry368
Besides the extent of branching, can you think of any other structural parameters that might lead to differences in physical properties? : Polymer Chemistry357
What kinds of structural changes accompany bond-breaking and bond-forming in olefin polymerization? : Polymer Chemistry721
What are the other ways in which chemists can manipulate the properties of polymers? : Polymer Chemistry379
How does the molecular-level structure of these polymers influence their physical properties? : Polymer Chemistry1 737
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 Chemistry427
A polymer's structure influences its physical properties. Describe two structural variations that are possible for polypropylene but not for polyethylene. : Polymer Chemistry389
What are some of the polymers that you encounter every day? Describe their physical properties. : Polymer Chemistry421
Atactic polypropylene is always produced with the [cp2zr(r)]+ catalyst. Explain this on the basis of molecular-level interactions. : Polymer Chemistry341
What is the difference between a heterogeneous and a homogeneous catalyst? What are some of the advantages of homogeneous catalysts? : Polymer Chemistry370
What are the factors which affect corrosion? : Electrochemistry Corrosion
Name the 4 physical states of matter?
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Explain why acetic has less conductivity than hcl?
Can a Nascent Hydrogen be used for fuel cell without damaging the equipment and if so how good would it be compared to other type of hydrogen.
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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
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Define a substituted hydrocarbon?
Tell me the common name of the molecule dihydrogen dioxide?
Name the element which has the following ground-state electron configuration: 1s22s22p6?
What are some of the polymers that you encounter every day? Describe their physical properties. : Polymer Chemistry
Name the element does the symbol au stand for?
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