我的共轭聚合物纳米粒子的尺寸在5nm一下,我查了一下资料,the soluble particles keep individua,this result can be attributed to the very high degree of crowding reached in the outer shell of the dendrimer branches.也就是当共轭聚合物纳米粒子(超支化聚苯)的尺寸较小时,表现出较强的刚性,超支化聚合物外层的branch很拥挤,纳米粒子与纳米粒子之间就会排斥,无法团聚。