## 3 Results and Discussion  
### Preparation of Poly(divinylbenzene) (PDVB)-Based Functionalized Porous Organic Polymers  
In this work, the emphasis focus on the design and synthesis of potential DVB-based porous organic polymer supports with different functional comonomers for metallocene catalysts by a dispersion polymerization method [12; 35], and the suitable polymer supports, like the inorganic counterparts, generally contain relatively high specific surface area (SSA) and porosity (SSA \(\geq\) 100 m\({}^{2}\)-g\({}^{-1}\), PV \(\geq\) 0.2 cm\({}^{3}\)-g\({}^{-1}\)) with good morphology and suitable bulk density (0.2-0.4 g\(\cdot\)cm\({}^{-3}\)). A series of functionalized PDVB-based POP particles were prepared using St, HEMA, HPMA, GMA, and VBC as comonomers.  
The schematic illustration of synthesis of functionalized PDVB particles is shown in Figure 1. The porosity results based on N\({}_{2}\) sorption results and bulk density are listed in Table 1. Non Local Density Functional Theory (NLDFT or DFT) simulation was adopted using N\({}_{2}\)-carbon kernel at 77 K based on a slit-pore model to evaluate the pore textural structure, especially the pore-size distribution of the prepared POP samples.  
Figure 1: Schematic illustration of synthesis of functionalized PDVB particles.  
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{2}{*}{**No.**} & \multirow{2}{*}{\begin{tabular}{c} **Functional** \\ **Connomer (FO)** \\ \end{tabular} } & \multirow{2}{*}{**Solvent**} & \multirow{2}{*}{\begin{tabular}{c} **Divinylbenzene** \\ **(DVB)** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **FC/DVB** \\ **(Molar Ratio)** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Template** \\ **Agent** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Specific Surface** \\ **Area/Multi Point** \\ **BET** [m\({}^{2}\)/gl] \\ \end{tabular} } & \multirow{2}{*}{\
\begin{tabular}{c} **Total Pore** \\ **Volume** \\ **[mm]** \\ \end{tabular} } & \multirow{2}{*}{
\begin{tabular}{c} **Average Pore** \\ **BulL Density** \\ **g/cm\({}^{3}\)** \\ \end{tabular} } \\ \hline
1 & St & EtOH/H\({}_{\text{D}}\)O = 10:1 & 55\% & 54 & - & 41.6 & 0.0836 & 8.03 & 0.08 \\ \hline
2 & – & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & - & - & 178 & 0.396 & 8.89 & 0.02 \\ \hline
3 & HEMA & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & 2.3 & - & 417 & 0.434 & 4.16 & 0.20 \\ \hline
4 & HPDA & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & 2.3 & - & 430 & 0.447 & 4.16 & 0.24 \\ \hline
5 & GMA & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & 35 & - & 17.1 & 0.040 & 9.34 & 0.08 \\ \hline
6 & VBC & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & 0.521 & - & 50.9 & 0.104 & 8.21 & 0.05 \\ \hline
7-1 & HPDA & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & 2.3 &
\begin{tabular}{c} \(\text{Fe}_{\text{D}}\)+20 nm \\ 3 wt \% \\ \end{tabular} & 412 & 0.420 & 4.08 & 0.25 \\ \hline
7-2 & & & & - & 441 & 0.480 & 4.35 & 0.24 \\ \hline
8-1 & & & & & 199 & 0.299 & 6.01 & 0.30 \\ \hline
8-2 & & & & & 215 & 0.301 & 5.59 & 0.29 \\ \hline
9 & HEMA/St & & & & & 183 & 0.296 & 6.45 & 0.22 \\ \hline
10 & HEMA/VBC & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & 1.0291.5 & - & 90.8 & 0.122 & 5.32 & 0.16 \\ \hline
11 & HEMA/VBC & EtOH/H\({}_{\text{D}}\)O = 9:1 & 80\% & 1.0561.19  & - & 15.1 & 0.0883 & 10.1 & 0.39 \\ \hline
12 & HEMA/VBC & ethanol & 80\% & 1.0321.19  & 4.88 & 0.0131 & 10.7 & 0.33 \\ \hline
13 & HEMA/VBC & ethanol & 80\% & 1.0147.139 & - & 210 & 0.244 & 4.63 & 0.28 \\ \hline
14 & HEMA/VBC & ethanol & 80\% & 1.0171.5 & - & 380 & 0.400 & 4.21 & 0.22 \\ \hline \hline \end{tabular}
\end{table}
Table 1: Characterization of poly(divinylbenzene) (PDVB)-based functional polymer from N\({}_{2}\) sorption results and bulk density.