Glycol dichloroacetates are the best cross-linkers for non-leaching QPEI preparation.
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Octyl bromide is optimal alkylating agent for preparation of antimicrobial QPEI.
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MeI has no advantages compared to dimethyl sulfate for quaternization of PEI.
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Resistance of QPEI to be washed out growths with increase of alkyl chain length.
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