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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >Chemical modification of lipase with poly[(N-acylimino)ethylene]s having a hydrophobic component at the polymer end
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Chemical modification of lipase with poly[(N-acylimino)ethylene]s having a hydrophobic component at the polymer end

机译：用在聚合物末端具有疏水成分的聚[（N-酰基酰亚胺）乙烯]对脂肪酶进行化学修饰

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摘要

Novel amphiphilic polymeric modifiers, i.e., block copolymers of 2-oxazolines containing hydrophobic and hydrophilic components (2), and homopolymers of 2-oxazolines having one hydrophobic unit at the polymer end (5), were prepared. Each of the polymeric modifiers was coupled with Candida cylindracea lipase by using a carbodiimide. It was shown that a 2-oxazoline block copolymer having both a hydrophobic and a hydrophilic component remarkably enhanced the thermal stability of lipase in organic solvents. It was also found that the introduction of a hydrophobic unit at the polymer end gave a significant activation of the enzyme functions in organic solvents, even when poly[(N-acetylimino)ethylene], which was not a suitable modifier for enzyme use in an organic solvent, was employed.
机译：制备了新型两亲聚合物改性剂，即含有疏水和亲水组分的2-恶唑啉的嵌段共聚物（2），和在聚合物末端具有一个疏水单元的2-恶唑啉的均聚物（5）。通过使用碳二亚胺将每种聚合物改性剂与假丝酵母脂肪酶偶联。结果表明，具有疏水性和亲水性成分的2-恶唑啉嵌段共聚物显着提高了脂肪酶在有机溶剂中的热稳定性。还发现在聚合物末端引入疏水单元可显着活化酶在有机溶剂中的功能，即使聚[（N-乙酰基亚氨基）乙烯]（一种不适合用作酶的修饰剂）也是如此。使用有机溶剂。

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