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Effect of zinc phenylphosphonate on the crystallization behavior of poly( l ‐lactide)
Author(s) -
Wu Ningjing,
Wang Honghao
Publication year - 2013
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39471
Subject(s) - crystallization , crystallinity , differential scanning calorimetry , nucleation , materials science , lactide , isothermal process , chemical engineering , zinc , polymer chemistry , chemistry , polymer , composite material , copolymer , thermodynamics , organic chemistry , metallurgy , physics , engineering
The effect of zinc phenylphosphonate ( PPZn) on the crystallization behavior of poly( l ‐lactide) (PLLA) was investigated using differential scanning calorimetry (DSC) and Polarized Optical Microscopy (POM) measurements. The non‐isothermal cold crystallization results showed that the addition of PPZn obviously decreased the cold crystallization temperature of PLLA and increased the degree of crystallinity of PLLA. The isothermal crystallization kinetics results showed that the crystallization rate of PLLA with small amount of PPZn was much higher than that of neat PLLA, and the half‐time ( t 1/2 ) of PLLA/PPZn sample is far less than that of neat PLLA. As an effective nucleating agent, PPZn particles had also some influence on nucleation mechanism and crystal growth of PLLA. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2744–2752, 2013