12. There is an interesting problem occurring with (poly(ethylene terephthalate )PET recycling. Some manufacturers are including...

12. There is an interesting problem occurring with (poly(ethylene terephthalate )PET recycling. Some manufacturers are including additives intended to help in the degradation of PET. Mention some additive samples.

11.Why is PEG(poly-ethylene glycol) can bewidely used in drug delivery? Hint: considering the water solubility of the polymer.

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queen_honey_blossom answered 1 year ago

A sample of poly(ethylene terephthalate), PET, was dissolved in a solvent to give a series of...

A sample of poly(ethylene terephthalate), PET, was dissolved in a solvent to give a series of solutions of different concentrations (c). A membrane osmometer was used to measure the corresponding osmotic pressures (pi) at 25 oC. Given that a plot by pi/c vs c gave an intercept equivalent to 94.2 J/kg and the point specified by pi/c = 141 J/kg and c = 8.70 x 10-3 kg/dm3 lies on the plot, evaluate (i) the second virial coefficient (A2), and (ii)...

Compute repeat unit molecular weights for the following: (a) poly(vinyl chloride), (b) poly(ethylene terephthalate), (c) polycarbonate,...

Compute repeat unit molecular weights for the following: (a) poly(vinyl chloride), (b) poly(ethylene terephthalate), (c) polycarbonate, and (d) polydimethylsiloxane. please show equations used and calculations, thank you

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12. There is an interesting problem occurring with (poly(ethylene terephthalate )PET recycling. Some manufacturers are including...

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A sample of poly(ethylene terephthalate), PET, was dissolved in a solvent to give a series of...

Compute repeat unit molecular weights for the following: (a) poly(vinyl chloride), (b) poly(ethylene terephthalate), (c) polycarbonate,...