Two crosslinkable polyesters are being considered for use as the resin in making

Question

Two crosslinkable polyesters are being considered for use as the resin in making a fiber-glass-reinforced tank for processing various chemicals. One polyester is made from a glycol having four carbons between the alcohol groups, and the other is made from the same acid but from a glycol having eight carbons between the alcohols. Compare the physical, chemical, and mechanical properties of the two resins. If the chemicals being processed are water-based, which resin is the best candidate on the basis of chemical resistance?

Explanation / Answer

due to the presence of more number of CH2 groups in glycol of second resin, it is more nonpolar, less reactive.

If the chemicals being processed are water based, the second resin is the best candidate as it is more resistant towards water than that of first one.

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