什(shen)么是"晶點"?
晶(jing)(jing)點(dian)(dian)實際(ji)上是"過度聚(ju)(ju)(ju)合物(wu)".即晶(jing)(jing)點(dian)(dian)部(bu)(bu)位聚(ju)(ju)(ju)合物(wu)的分(fen)(fen)子量(liang)，高(gao)于周圍(wei)同(tong)種聚(ju)(ju)(ju)合物(wu)的分(fen)(fen)子量(liang)，由(you)于分(fen)(fen)子量(liang)高(gao)，因此晶(jing)(jing)點(dian)(dian)部(bu)(bu)位聚(ju)(ju)(ju)合物(wu)具有較(jiao)高(gao)熔(rong)點(dian)(dian)，在熔(rong)化(hua)時，熔(rong)體具有較(jiao)高(gao)的粘度，晶(jing)(jing)點(dian)(dian)部(bu)(bu)位聚(ju)(ju)(ju)合物(wu)在吹(chui)成薄膜(mo)時，不能與周圍(wei)的同(tong)種聚(ju)(ju)(ju)合物(wu)相互均勻地分(fen)(fen)散/混和，并在熔(rong)體吹(chui)成薄膜(mo)后，先于周圍(wei)的同(tong)種聚(ju)(ju)(ju)合物(wu)凝(ning)固.因此，研成"箭頭(tou)"狀或球狀過度聚(ju)(ju)(ju)合物(wu)的凝(ning)固體.習(xi)慣上被(bei)稱為"晶(jing)(jing)點(dian)(dian)"。