Hai-ming Chen, Jie Chen, Li-na Shao, Jing-hui Yang, Ting Huang, Nan Zhang and Yong Wang Comparative study of poly(L-lactide) nanocomposites with organic montmorillonite and carbon nanotubes Journal of Polymer Science Part B: Polymer Physics 51
Functionalized multiwalled carbon nanotubes (FMWCNTs) and organic montmorillonite (OMMT) are known to enhance the crystallization ability of poly(L-lactide) (PLLA). In this study, PLLA/OMMT exhibits a looser percolated network structure of nanofiller compared with the PLLA/FMWCNTs, and the restriction effect of OMMT on the diffusion of PLLA chain segments is also relatively smaller compared with that of FMWCNTs. Consequently, while nucleation sites in PLLA/OMMT are fewer than in PLLA/FMWCNTs, the former nanocomposites exhibit larger growth rate of crystallites, which is favorable for more perfect crystallites.
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