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The glass transition temperature of poly lactic acid is __________

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The glass transition temperature of poly lactic acid is __________

(a) 20-30^oC

(b) 50-55^oC

(c) 60-65^oC

(d) 30-40^oC

The question was asked in my homework.

This key question is from Applications of Elastromers in division High Polymers and Plastics of Applied Chemistry

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Correct choice is (c) 60-65^oC

To elaborate: The glass transition temperature of poly lactic acid is 60-65^oC. It possess the melting point of 173-178^oC.

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