Table 1 Summary of molecular characteristics of particle brush systems.

Sample IDs reflect sample characteristics where the first number indicates the approximate particle radius in nanometers. S, styrene; MMA, methyl methacrylate; SAN, styrene-r-acrylonitrile with (S/AN) = 3:1 graft composition. N is the degree of polymerization of surface grafted chains, Mn, GPC is the number average molecular weight as determined by gel permeation chromatography (GPC), Mw/Mn is the molecular weight dispersity, and θs is the surface grafting density. wt %, weight percent.

Sample IDNMn, GPCMw/Mnθs (nm−2)SiO2 wt %
8SiO2-S62626,5001.220.7656
8SiO2-S20520521,4001.360.4922
8SiO2-S36036037,9001.140.6414
60SiO2-S13001300135,2001.290.5925
8SiO2-MMA68686,8001.300.4158
8SiO2-MMA19419419,4001.170.6525
8SiO2-MMA25725725,7001.320.4921
8SiO2-MMA35035035,0001.120.5613
60SiO2-MMA14701470147,0001.180.9316
8SiO2-SAN26226222,3001.150.6419