Crystalandphasemorphologiesandstructuresdeterminedbyself-organizationofcrystalline-amorphousdiblockcopolymers,crystallizationofthecrystallizableblocks,andvitrificationoftheamorphousblocksarereviewedthroughasystematicstudyonaseriesofpoly（ethyleneoxide）-b-polystyrene（PEO-b-PS）diblockcopolymers.Onthebaseofcompetitionsamongthesethreeprocesses,molecularandsupramolecularorderinginconfinedenvironmentscanbeinvestigated.Inaconcentration-fluctuation-induceddisordered(DCF)diblockcopolymer,thecompetitionbetweencrystalli-zationofthePEOblocksandvitrificationofthePSblocksismomtoredbytime-resolvedsimultaneoussmallangleX-rayscattering（SAXS）andwideangleX-raydiffraction（WAXD）techniques.InthecaseofTc
