用響應(yīng)面法優(yōu)化在微波輻射下殼聚糖降解性能的研究畢業(yè)論文設(shè)計(jì)-展示頁(yè)
2025-07-04 23:05本頁(yè)面
【正文】 weight chitosan which is less than 3000 under the condition that the pH was , the micro wav e irradiating power w as about 528W, and the irradiating time was hours. The product possessed good property of repetition。the degree of deacetylation目錄引言 ....................................................................................................................................................11 實(shí)驗(yàn)部分 ........................................................................................................................................21. 1 實(shí)驗(yàn)儀器及藥品 ................................................................................................................21. 2 實(shí)驗(yàn)方法 ............................................................................................................................21. 2. 1 殼聚糖溶液的制備 ................................................................................................21. 2. 2 殼聚糖的微波降解 ................................................................................................21. 2. 3 脫乙酰度的測(cè)定 ....................................................................................................21. 2. 4 相對(duì)分子質(zhì)量的測(cè)定 [7].........................................................................................31. 2. 5 響應(yīng)面分析因素水平的選取 ........................................................................................3 結(jié)果與分析 .........................................................................................................................32 結(jié)果與討論 ....................................................................................................................................62. 1 輻射功率對(duì)殼聚糖降解性能的影響 ................................................................................62. 2 輻射時(shí)間對(duì)殼聚糖降解性能的影響 ................................................................................62. 3 pH 值對(duì)殼聚糖降解性能的影響 ......................................................................................72. 4 pH 值為 7~ 8 時(shí)反應(yīng)時(shí)間對(duì)降解的影響 ........................................................................72. 5 微波促進(jìn)殼聚糖降解機(jī)理的探討 ....................................................................................73 結(jié)論 ................................................................................................................................................8參考文獻(xiàn) ............................................................................................................................................9致謝 ......................................................................
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