what is the difference between polyurethane and polyethylene?

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what is the difference between polyurethane and polyethylene?

is there a visual or physical difference

2006-09-12 13:23:44 · 2 answers · asked by Dave B 1 in Science & Mathematics ➔ Chemistry

2 answers

Polyurethane uses the following lingages: -RO(CO)NHR- (carbamate linkage).
Polyethylene uses: -CH=CH- (ethylene lingage).

2006-09-12 13:50:26 · answer #1 · answered by jsn77raider 3 · 0⤊ 0⤋

polÂ·yÂ·uÂ·reÂ·thane (pl-yr-thn)
n.
Any of various resins, widely varying in flexibility, used in tough chemical-resistant coatings, adhesives, and foams.

polÂ·yÂ·ethÂ·ylÂ·ene (pl-th-ln)
n.
A polymerized ethylene resin, used especially for containers, kitchenware, and tubing, or in the form of films and sheets for packaging.

2006-09-12 20:35:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋