Structural morphologies of diblock AB and triblock BAB copolymers (A = polystyrene, B = poly (N-isopropylacrylamide)) in aqueous environment have been investigated by dissipative particle dynamics (DPD). In triblock copolymers insoluble PS blocks contract while soluble pNIPAM blocks stay at the periphery forming looped chains as corona. As the temperature is increased there is a continuous morphological transition and micelles form ellipsoidal structures with segregated polymer zones. The phase transition of looped pNIPAM chains occurs at lower temperature than for linear chains and within broader temperature range. It is discussed how the chain topology of pNIPAM affects the phase transition.

通过耗散粒子动力学（DPD）研究了二嵌段AB和三嵌段BAB共聚物（A =聚苯乙烯，B =聚（N-异丙基丙烯酰胺））的结构形态。在三嵌段共聚物中，不溶的PS嵌段收缩，而可溶的pNIPAM嵌段留在外围，形成环链，形成电晕。随着温度升高，存在连续的形态学转变，并且胶束形成具有分离的聚合物区域的椭圆体结构。环状pNIPAM链的相变发生在比线性链更低的温度下，并且在更宽的温度范围内发生。讨论了pNIPAM的链拓扑如何影响相变。