(a) TEM images of micelles self-assembled from PDCs: (i) PCL3.5K-G3-mPEG2K, (ii) PCL3.5K-G3-mPEG5K, (iii) PCL14K-G3-mPEG2K, (iv) PCL14K-G3-mPEG5K; and from the linear copolymers: (v) PCL3.5K-mPEG2K, (vi) PCL3.5K-mPEG5K, and (vii) PCL14K-mPEG5K. Scale bar = 100 nm. (b) MD simulations of micellar structures formed from (i) 128 PCL3.5K-mPEG2K, (ii) 14 PCL3.5K-G3-mPEG2K, and (iii) 10 PCL14K-G3-mPEG2K (PCL: blue, G3-dendron: yellow, PEG: red). Water is not shown.