After degraded by oxidation process, polyvinyl acetals, prepared from acetalation of PVA with aldehydes in aq. alcohol solution under acid conditions, can be directly used for adhesive and coating.
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- 聚乙烯醇(PVA)在乙醇水溶液中在酸性条件下与醛类缩醛化制成PVA缩醛的乙醇水溶液。