Compatibilized polymer blends fractionated crystallization

The presence of nanomaterial influences the crystaltization process as it acts as additional heterogeneity creating more interfaces [29]. In some cases, the presence of a nanofiller alters the crystaltization temperature and thus the thermal properties. In the dispersed phase, the presence of nanoparticles increases the occurrence of fractionated crystaltization [17,23,27,29,53-55,61-63,93-95]. Also, the extent of compatibilization effect from the nanomaterial can alter the whole process of crystaltization in the polymer blend. When a nanofiller is organically modified, using compounds with a similar chemical structure to one or both polymers present in the blend, the influence of the nanofillers here on the crystallization behavior is complex. This is because several factors have to be taken in consideration, such as the nucleating effect of the matrix on the dispersed phase or vice-versa, the nucleating effect of the nanofiller compatibitizer on both phases. There are reported cases where modified nanofillers have impeded the crystaltization process and thus retarded crystaltization in the overall material. 

Yordanov C, Minkova L. Fractionated crystallization of compatibilized LDPE/PA6 blends. Eur Polym J... 

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