Abstract
In this review the preparation methods of polymer nanoparticles from chemical microemulsion polymerization to physical methods such as spray-drying,freeze-drying,freeze-extracting,fast evaporation and spreading evaporation have been summarized.The influence of nanoconfinement on glass transition temperature (Tg) variation from significant or slight decrease,no evident Tg deviation,to even Tg increase,as well as possible explanations of Tg deviations were discussed.The influences of nanoconfinement or entanglement on the other properties such as structural relaxation,crystallization in polymer nanoparticle samples were also reviewed in this article.
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