(a) The greater interconnectivity of a chains causes the tensile strength to rise with molecular weight.(b) As chain bonding develops, tensile strength rises with the degree of crystallinity.(c) Tensile strength rises when a material is deformed by drawing because the chains realign, increasing overall bonding forces.(d) The concomitant increase is crystallinity and consequently greater bonding causes the tensile strength of the an underformed material to increase with annealing.
(A) As the molecular weight of a semicrystalline polymer grows, so does its tensile strength.Increased chain entanglements with higher molecular weights account for this phenomenon.
Since chlorine has a stronger bond with fluorine than fluorine does with oxygen, we would anticipate polychlorotrifluoroethylene to have higher tensile strength.
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