Radical copolymerizations were carried out with 2‐hydroxyethyl methacrylate (HEMA) and a polyamine macromonomer (1). 1H NMR, IR, liquid chromatography and turbidity measurements showed the polymer obtained to be poly[(HEMA)‐graft‐polyamine]. The monomer reactivity ratio for the polyamine macromonomer was found to be similar to that of a low‐molecular‐weight analogous monomer. Microphase separated structure was observed on thin films of the copolymer by means of transmission electron microscopy. Using the column method, the biomedical behavior of the copolymer was estimated in terms of its interaction with rat lymphocytes. Strikingly, the copolymer surface was found to differentiate the lymphocyte subpopulations without any added adjuvant protein.
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Maruyama et al. (1986) studied this question.
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