Recommanded Product: 7789-45-9. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Cupric bromide, is researched, Molecular Br2Cu, CAS is 7789-45-9, about Effect of Dispersity on the Conformation of Spherical Polymer Brushes. Author is Li, Tzu-Han; Yadav, Vivek; Conrad, Jacinta C.; Robertson, Megan L..
We show that dispersity (D) markedly alters the conformation of spherical polymer brushes. The average lengths (lb) of poly(tert-Bu acrylate) (PtBA) brushes of varying D grafted to nanoparticles were measured using dynamic light scattering. In the semidilute polymer brush (SDPB) regime, the lb of PtBA and polymers from earlier studies of various D could be cleanly collapsed onto a master curve as a function of the scaling variable Nwσ1/3, where Nw is the weight-average d.p. and σ is the grafting d. In the concentrated polymer brush (CPB) regime, however, lb collapsed onto a bifurcated curve as a function of the scaling variable Nwσ1/2, indicating D more strongly affects the average length of brushes with low Nwσ1/2. We propose that the stretching of the stem near the particle surface due to interchain interactions in the CPB regime leads to greater lb in broad dispersity brushes of low but not high Nwσ1/2.
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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem