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Nucleation Effect of Layered Metal Phosphonate on Crystallization of Bacterial Poly[(3‐hydroxybutyrate)‐ co ‐(3‐hydroxyhexanoate)]
Author(s) -
Yu Fang,
Pan Pengju,
Nakamura Nobuo,
Inoue Yoshio
Publication year - 2011
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201000248
Subject(s) - comonomer , nucleation , crystallization , materials science , chemical engineering , metal , chemistry , polymer chemistry , nuclear chemistry , organic chemistry , monomer , metallurgy , polymer , engineering
The nucleating effect of zinc phenylphosphonate (PPZn) was investigated on the as‐bacterially synthesized poly(3‐hydroxybutyrate) [P(3HB)] and poly[(3‐hydroxybutyrate)‐ co ‐(3‐hydroxyhexanoate)]s [P(3HB ‐co‐ 3HHx)s] in order to improve their crystallization rate. PPZn is found an efficient nucleating agent on the crystallization of P(3HB) and P(3HB ‐co‐ 3HHx) with low 3HHx unit content. The nucleation mechanism is proposed to be epitaxial nucleation. Both the comonomer‐unit composition and its distribution of P(3HB ‐co‐ 3HHx)s were found exhibiting significant effect on the nucleating effect of PPZn. It is found that PPZn is more efficient on nucleating the crystallization of P(3HB ‐co‐ 3HHx) with a broader comonomer‐unit compositional distribution than that with a narrower distribution.