淀粉的化学改性增加了键合原子的净电荷，提高了药剂给予电子的能力，提高了药剂的活性。
Equipped with more net charges for bonding atoms, the modified starch have more electrons for denotation and more activities.
本文介绍了淀粉化学改性——一种多功能的阳离子型造纸助剂的合成与应用。
The paper introduces chemical modification of starch-synthesis and application of a kind of multifunctional cationic type paper making additive.
综述了化学改性淀粉的研制及应用现状，评价了各种改性淀粉的应用性能并预测了其今后的发展趋势。
The preparation and application of chemical modified starch are reviewed. The performance of various modified starch is evaluated and the developing tendency is forecasted.
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