16417
Loss of volatiles , changes in molecular weight , and glass transition temperature ( Tg ) were investigated using thermogravimetric analysis ( TGA ) , mass spectrometry ( MS ) , and differential scanning calorimetry ( DSC ) , respectively .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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