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Glass Transition (Tg Range)

glass transition tg range polymers

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#1 Kmfood


    Brand New Member

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  • 2 posts

Posted 08 April 2019 - 09:06 PM

Hello everyone,


I had a question regarding the Tg range of a copolymer. How can the Tg range of the copolymer be different then the Tg values of the original polymer.


For instance if polymer 1 has a Tg value of 10°C, and polymer 2 has a Tg value of 20°C. How can the Tg range of the copolymer be from 5-25°C?


I understand that in order for the copolymer to occur, the two polymers must be mixed well, changing its characteristics, and forming a block polymer. However i don't understand why/how that changes the copolymers glass transition range.   


Any help would be appreciated. Thank you.

#2 breizh


    Gold Member

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Posted 09 April 2019 - 12:11 AM


You should try to get a copy of : Principles of Polymer engineering.

Another reference : Carraher's Polymer chemistry


Good Luck


Edited by breizh, 09 April 2019 - 12:29 AM.

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