A Research on the Method of Determining the Adducts in Maleic Modified Rosin

Ma wenxiu and Cheng Zhi

Journal of Nanjing Forestry University (Natural Sciences Edition） ›› 1980, Vol. 4 ›› Issue (03) : 68-75.

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南京林业大学学报（自然科学版）
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Journal of Nanjing Forestry University (Natural Sciences Edition） ›› 1980, Vol. 4 ›› Issue (03) : 68-75. DOI: 10.3969/j.jssn.1000-2006.1980.03.008

A Research on the Method of Determining the Adducts in Maleic Modified Rosin

  • Ma wenxiu and Cheng Zhi
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Abstract

Based on Aldrich’s method of separating rosin adducts from rosin mixtures, a methcd of separating rcsin-maleic anhydride adducts from maleic mcdified rosin and determining the content of the adducts has been devised. Optimun conditions for separation have been investigated. Separative adducts can be first extracted by methanol-heptane-water or methanol-petroleum ether (60o-90℃)-water system and then determined by titrimetry or gravimetry with an experimental error of ±2-6%.?75

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Ma wenxiu and Cheng Zhi. A Research on the Method of Determining the Adducts in Maleic Modified Rosin[J]. Journal of Nanjing Forestry University (Natural Sciences Edition）. 1980, 4(03): 68-75 https://doi.org/10.3969/j.jssn.1000-2006.1980.03.008
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