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羥乙基纖維素與聚丙烯酸鈉接枝共聚及其溶脹行為
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    摘要:

    采用微波法合成羥乙基纖維素/聚丙烯酸鈉接枝共聚物（HEC-g-PAA）,，考察了單體中和度,、單體用量、引發(fā)劑質(zhì)量濃度等因素對接枝率和吸水率的影響，并研究了不同粒度HEC-g-PAA的溶脹行為,。結(jié)果表明,，HEC-g-PAA的溶脹過程屬于非Fick擴(kuò)散過程,，鏈段松弛是樹脂吸水的主要原因,。

    Abstract:

    Grafting sodium polyacrylate onto hydroxyethyl cellulose (HEC-g-PAA) has been carried out by using microwave method. The effect of the reaction conditions such as the concentration of initiator, the neutralization degree of the acrylic acid and the amount of monomer on the percentage of grafting and absorbency have been studied. The swelling behavior of HEC-g-PAA which have different sizes were discussed. The results were analyzed in terms of the non-Fickian equation; the result showed that relaxation contribution is the main cause in absorbing process.

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趙妍嫣,姜紹通.羥乙基纖維素與聚丙烯酸鈉接枝共聚及其溶脹行為[J].農(nóng)業(yè)機(jī)械學(xué)報,2008,39(4):101-103.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(4):101-103.

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