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Effect of zinc phenylphosphonate on the crystallization behavior of poly(l-lactide)

Authors

  • Ningjing Wu,

    Corresponding author
    1. Department of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
    • Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Qingdao City, China
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  • Honghao Wang

    1. Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Qingdao City, China
    2. Department of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
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Correspondence to: N. Wu (E-mail: ningjing_wu@yahoo.com.cn)

ABSTRACT

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 (t1/2) 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

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