Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 214
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Selection: The polymer with a glass transition temperature Tg higher than room temperature is ( ). A. Plastic ； B. Rubber ； C. Coal tar ； D. Petroleum asphalt. —————————————————— Please note: We will close this thread after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation. Charisma Reward: Those who post a topic in this section within two days to provide a detailed explanation or discussion on the knowledge points related to this question are asked to reply/comment in this post to inform us, and we will have a moderator award them charisma points. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights and opinions.
Polymer polymers with a glass transition temperature Tg higher than room temperature are (A).
Polymer polymers with a glass transition temperature Tg higher than room temperature are (A). A. Plastic ； B. Rubber ； C. Coal tar ； D. Petroleum asphalt.
Polymer polymers with a glass transition temperature Tg higher than room temperature are (A). A. Plastic ； B. Rubber ； C. Coal tar ； D. Petroleum asphalt.
Polymer compounds with a glass transition temperature Tg higher than room temperature are (rubbers)
Polymer polymers with a glass transition temperature Tg higher than room temperature are A. plastics
A. Plastic. -----------------------------------
I believe the correct answer to this question is A.
Polymer materials with a glass transition temperature Tg higher than room temperature are (A, plastics).