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polybutene Polybutene and polyisobutylene are liquid oligomers widely used as plasticizers for high-molecular weight polymers, such as polyethylene. They are not to be confused with the high molecular weight polymer polybutene-1. ==Properties== The liquid is clear and colourless, and is sold in many different grades. The grades are determined mainly by molecular weight, with the higher molecular weight grades having increasing viscosity. The oligomer degrades at high temperature (upwards of 350 °C) to form monomer isobutene by chains unzipping from the chain ends.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「polybutene」の詳細全文を読む
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