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    杨悟子, 金寄春. 香草醛缓释剂的合成和水解性能的测定——一种长效植物生长激素[J]. 华东理工大学学报（自然科学版）, 1986, (1).
    引用本文: 杨悟子, 金寄春. 香草醛缓释剂的合成和水解性能的测定——一种长效植物生长激素[J]. 华东理工大学学报（自然科学版）, 1986, (1).
    shu
    The synthesis of PVA-vanillin acetal, an auxin of prolonged releasing power and the determination of its hydrolytic property[J]. Journal of East China University of Science and Technology, 1986, (1).
    Citation: The synthesis of PVA-vanillin acetal, an auxin of prolonged releasing power and the determination of its hydrolytic property[J]. Journal of East China University of Science and Technology, 1986, (1).
    shu

    香草醛缓释剂的合成和水解性能的测定——一种长效植物生长激素

    The synthesis of PVA-vanillin acetal, an auxin of prolonged releasing power and the determination of its hydrolytic property

      摘要
    • 摘要: 以DMSO为溶剂、对甲苯磺酸或浓硫酸作催化剂,由聚乙烯醇和香草醛制备了聚乙烯醇缩香草醛,其缩醛度可达55%。室温下该缩醛可水解而缓慢释放出香草醛。

       

      Abstract: The preparation of a polyvinyl acetal by the reaction of polyvinyl alcohol with vanillin is reported. The acetalization is accomplished in a solvent of DMSO with p-toluene sulfonic acid or sulfuric acid as catalysts. The degree of acetalization may attain to 55%.Due to the hydrolytic property of acetal, vanillin will be released step by step at a very slow rate under room temperature.

       

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