Please group amino acids according to the nature of their side chains: hydrophobic, hydrophilic, polar and nonpolar.

请依据氨基酸支链的性质来分类：疏水性、亲水性、极性与非极性。

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The effect-producing fluorocarbon side chains are re-orientated, because the surrounding water is too polar a medium for the highly hydrophobic side chains.

对（整理）效果产生影响的碳氟侧链的分子取向发生了变化，这是因为，对于强疏水性的侧链而言，周围的水分子是极性极强的介质。

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