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PCS swelling curves of the samples (a) PNN100/PMAM0 (black squares); (b) PNN75/PMAM25 (red circles); (c) PNN50/PMAM50 (blue triangles); (d) PNN25/PMAM75 (magenta diamonds) and (e) PNN0/PMAM100 (olive stars). All measurements were performed at pH4.
