Please list all the polymerization mechanisms and describe the differences betwe

Question

Please list all the polymerization mechanisms and describe the differences between. 2) Please identify the monomers for the following polymers and indicate which polymerization mechanism can be used.

a.    

Please list all the polymerization mechanisms and describe the differences between. 2) Please identify the monomers for the following polymers and indicate which polymerization mechanism can be used. -CH2CH2- -CF2-CF2- -CH2-CH- -CH2-CH- -[NH(CH2)6NHCO(CH2)4CO]2- Question 3: Considering the following polymer size fractions of a given polymer sample: Calculate the number-average molecular weight of the polymer. Calculate the weight-average molecular weight of the polymer. Which average molecular weight did the 3 chains of molecular weight of 1,000,000 most significantly affect? why ? Calculate the polydispersity index(PI = (Mw/Mn) of the polymer. Question 4: As one of the leading causes of bone implant failure, the loosening of implant from implantation site is big concern. Please use your knowledge to properly select the materials and design the implant surface for better bone fixation and tissue bonding. Meanwhile, provide the rationale for the materials selection and surface design.

Explanation / Answer

1)cationic and anionic polymerisation

cationic is done in presence of acid

while anoinic is done in presence of base

2)CH2=CH2

CF2=CF2

CH(CH3)=CH2

CH2=CHCl

3)Mn= sum(M.n)/n

Mn= 8986.5

Mw= sum nM2/sumnM =1.736*10^5

mw will be affected much as it has M^2 mass is getting squared

PDI= Mw/Mn=19.31

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