Abstract
We present the synthesis and characterization of amphiphilic and double hydrophilic block copolymers containing a polydehydroalanine (PDha) block.
Highlights
Examples for polyampholytes synthesized by free radical polymerization are copolymers of quaternized poly((N,N-dimethylaminoethyl acrylate)-co-(sodium styrene sulfonic acid)) P(DMAEAq-co-NaSS)[14] or systems composed of N-(3-aminopropyl) methacrylamide hydrochloride and acrylic acid P(APMco-MAA).[15]
We recently reported on tert-butoxycarbonylaminomethyl acrylate as versatile building block for the preparation of polyampholytes and its polymerization using either free radical polymerization or atom transfer radical polymerization (ATRP).[28,29]
Thereby, we discovered that our previous assumption that either the –COOH or –NH2 moiety of PtBAMA can be selectively deprotected has to be reconsidered
Summary
Examples for polyampholytes synthesized by free radical polymerization are copolymers of quaternized poly((N,N-dimethylaminoethyl acrylate)-co-(sodium styrene sulfonic acid)) P(DMAEAq-co-NaSS)[14] or systems composed of N-(3-aminopropyl) methacrylamide hydrochloride and acrylic acid P(APMco-MAA).[15]. Thereby, hydrolysis of PS30-b-PtBAMA40 will lead to amphiphilic block copolymers, whereas in the case of PnBA25-b-PtBAMA50 double hydrophilic PAA25-b-PDha[40] will be obtained (Scheme 1).
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