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Molecular formula : MW : CAS :
nature : polymer liquid absorption and increase the size of the phenomenon. Swelling that it was decided to polymer and liquid nature. First linear polymer swelling then dissolved, and it was only swelling without polymer dissolved, such as gelatin in the water swelling, but not organic solvent swelling; Rubber in benzene swelling, but not in the water swelling. Some of the swelling polymer will form Sol, such as gelatin in the water in benzene and rubber, will be formed when heated swelling.
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