שאלה | Both liquid crystalline aromatic polyamides and linear high molecular weight polyethylene can be extrudes into fibers with tensile strengths higher than steel. The reason for this is (Choose from the following four possibilities)

Both liquid crystalline aromatic polyamides and linear high molecular weight polyethylene can be extrudes into fibers with tensile strengths higher than steel. The reason for this is (Choose from the following four possibilities)

		Both polymers are linear and have similar secondary forces which hold the individual polymer molecules in place.
		In the process of fiber formation the linear PE undergoes crosslinking while the polyamides interact through hydrogen bonding
		In the process of fiber formation both polymers can be highly aligned with ordered crystalline domains.
		In fiber formation both the polyamide and PE are chosen with very high molecular weights.