Wood Pulp Fibers Grafted with Polyacrylamide through Atom Transfer Radical Polymerization

Abstract:

Bleached wood pulp fibers grafted with polyacrylamide (PAM) was synthesized through surface-initiated atom transfer radical polymerization (SI-ATRP) to be applied in papermaking. The ATRP macroinitiator was prepared by esterification of hydroxyl groups of wood fibers with α-bromoisobutyryl bromide (α-BIBB). The bromine atoms on the surface of the macroinitiator were characterized and calculated by FT-IR, EDXS and TGA techniques. The ATRP grafting reaction conditions of fiber-PMA were discussed and determined. To optimize the polymerization in the CuBr/PMDETA catalytic system, several influencing factors on grafting yield were investigated, including solvent, reaction temperature, monomer concentration and sacrificial initiator. The PAM grafted fibers were characterized by FT-IR and TGA analyses.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 1458-1461
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.1458
• Online since: November 2011
• Authors: Xiu Mei Zhang, Jian Feng Ji, Yan Jun Tang, Yu Zhao
• Keywords: Grafting, Hydrogen Bonding, Polyacrylamide, SI-ATRP, Wood Pulp Fiber

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DOI: 10.1021/ma070825u

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