“…High polymers, for example, hydrocarbons such polyethylene, polypropylene, polyisobutylene, poly(butene-1), iso-poly(4-methylpentene-1), and polystyrene, crystallize to form spherulite. Some polyesters also form spherulite such as poly(ethylene terephthalate), poly(heptamethylene terephthalate), , poly(octamethylene terephthalate), poly(nonamethylene terephthalate), − poly(R-3-hydroxyvalerate), poly(R-3-hydroxybutyrate), poly(lactic acid), poly(vinylidene fluoride), etc. In reverse, dendritic crystallization has been reported for a number of polymers, polymer blends, or copolymers, melt-crystallized in ultrathin films, including polyethylene (PE), isotactic polystyrene (iPS), − poly(ethylene oxide) (PEO), poly(caprolactone), , poly-2-vinylpyridine-poly(ethylene oxide) (P 2 VP-PEO) block copolymers, and poly(ethylene oxide) (PEO)/poly(methyl methacrylate) (PMMA) blends. − All these studies showed that the dendritic crystals were formed in the samples with the film thickness of below 150 nm.…”