3D Printing of Aqueous Two‐Phase Systems with Linear and Bottlebrush Polyelectrolytes

Author:

Jin Zichen1ORCID,Seong Hong‐Gyu1,Srivastava Satyam1,McGlasson Alex1ORCID,Emrick Todd1ORCID,Muthukumar Murugappan1ORCID,Russell Thomas P.21ORCID

Affiliation:

1. Department of Polymer Science and Engineering Department University of Massachusetts 120 Governors Drive Amherst MA 01003 USA

2. Materials Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA

Abstract

AbstractWe formed core–shell‐like polyelectrolyte complexes (PECs) from an anionic bottlebrush polymer with poly (acrylic acid) side chains with a cationic linear poly (allylamine hydrochloride). By varying the pH, the number of side chains of the polyanionic BB polymers (Nbb), the charge density of the polyelectrolytes, and the salt concentration, the phase separation behavior and salt resistance of the complexes could be tuned by the conformation of the BBs. By combining the linear/bottlebrush polyelectrolyte complexation with all‐liquid 3D printing, flow‐through tubular constructs were produced that showed selective transport across the PEC membrane comprising the walls of the tubules. These tubular constructs afford a new platform for flow‐through delivery systems.

Funder

Army Research Office

Air Force Office of Scientific Research

National Science Foundation

Publisher

Wiley

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