## 3 Results
### Work of Adhesion of Organic Solvents on Modified Copolymer
}\) & \(\rm R^{2}\) \\ \hline n-hexane & \(W_{a}(T)=-0.88\,\)T + 423.69 & \(0.88\) & 423.69 & 479.34 & 0.9952 \\ \hline n-heptane & \(W_{a}(T)=-0.60\,\)T + 307.28 & \(0.60\) & 307.28 & 509.75 & 0.9954 \\ \hline n-octane & \(W_{a}(T)=-0.56\,\)T + 296.17 & \(0.56\) & 296.17 & 525.68 & 0.9917 \\ \hline n-nonane & \(W_{a}(T)=-0.56\,\)T + 297.66 & \(0.56\) & 297.66 & 535.36 & 0.9889 \\ \hline Benzene & \(W_{a}(T)=-0.67\,\)T + 355.5 & \(0.67\) & 355.5 & 529.33 & 0.9926 \\ \hline Toluene & \(W_{a}(T)=-0.65\,\)T + 363.83 & \(0.65\) & 363.83 & 557.68 & 0.9822 \\ \hline Ethyl acetate & \(W_{a}(T)=-0.69\,\)T + 392.76 & \(0.69\) & 392.76 & 566.75 & 0.992 \\ \hline Ethanol & \(W_{a}(T)=-2.05\,\)T + 1049.6 & \(2.05\) & 1049.6 & 511.88 & 0.9991 \\ \hline i-Propanol & \(W_{a}(T)=-1.72\,\)T + 875.58 & \(1.72\) & 875.58 & 510.42 & 0.9983 \\ \hline Dichlormethane & \(W_{a}(T)=-1.12\,\)T + 577.52 & \(1.12  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multicolumn{5}{c}{**4\% Melamine/S-DVB Copolymer**} \\ \hline Solvents & \(W_{u}(T)\) & \(\Delta S_{S}\) & \(\Delta H_{S}\) & \(T_{\text{data}}\). & R\({}^{2}\) \\ \hline n-hexane & \(W_{u}(T)=-0.96\) T + 460.73 & 0.96 & 460.73 & 479.28 & 0.9952 \\ \hline n-heptane & \(W_{u}(T)=-0.63\) T + 323.74 & 0.63 & 323.74 & 511.52 & 0.9969 \\ \hline n-octane & \(W_{u}(T)=-0.58\) T + 308.83 & 0.58 & 308.83 & 528.91 & 0.995 \\ \hline n-nonane & \(W_{u}(T)=-0.57\) T + 308.54 & 0.57 & 308.54 & 539.59 & 0.9934 \\ \hline Benzene & \(W_{u}(T)=-0.71\) T + 377.26 & 0.71 & 377.26 & 535.04 & 0.9956 \\ \hline Toluene & \(W_{u}(T)=-0.67\) T + 394.99 & 0.66 & 394.99 & 594.24 & 0.9896 \\ \hline Ethyl acetate & \(W_{u}(T)=-0.73\) T + 407.05 & 0.73 & 407.05 & 557.37 & 0.9956 \\ \hline Ethanol & \(W_{u}(T)=-1.78\) T + 950.98 & 1.78 & 950.98 & 535.58 & 0.9993 \\ \hline i-Propanol & \(W_{u}(T)=-1.47\) T + 797.06 & 1.47 & 797.06 & 543.18 & 0.9986 \\ \hline Dichlormethane & \(W_{u}(T)=-1.17\) T + 638 & 1.17 & 638 & 545.21 & 0.9988 \\ \hline \multicolumn{5}{c}{**1\% 5-HMU/DS-DVB Copolymer**} \\ \hline Solvents & \(W_{u}(T)\) & \(\Delta S_{S}\) & \(\Delta H_{S}\) & \(T_{\text{data}}\). & R\({}^{2}\) \\ \hline n-hexane & \(W_{u}(T)=-0.79\) T + 377.09 & 0.79 & 377.09 & 478.42 & 0.9996 \\ \hline n-heptane & \(W_{u}(T)=-0.59\) T + 297.17 & 0.59 & 297.17 & 503.00 & 0.9969 \\ \hline n-octane & \(W_{u}(T)=-0.58\) T + 298.07 & 0.58 & 298.07 & 514.00 & 0.9949 \\ \hline n-nonane & \(W_{u}(T)=-0.59\) T + 306.26 & 0.59 & 306.26 & 520.14 & 0.9939 \\ \hline Benzene & \(W_{u}(T)=-0.69\) T + 355.57 & 0.69 & 355.57 & 512.20 & 0.9956 \\ \hline Toluene & \(W_{u}(T)=-1.01\) T + 530.27 & 1.01 & 530.27 & 523.16 & 0.9969 \\ \hline Ethyl acetate & \(W_{u}(T)=-1.08\) T + 552.6 & 1.08 & 552.6 & 514.14 & 0.9991 \\ \hline Ethanol & \(W_{u}(T)=-1.23\) T + 647.99 & 1.23 & 617.99 & 501.37 & 0.9969 \\ \hline i-Propanol & \(W_{u}(T)=-0.98\) T + 495.06 & 0.98 & 495.06 & 507.75 & 0.9897 \\ \hline Dichlormethane & \(W_{u}(T)=-1.26\) T + 619.03 & 1.26 & 619.03 & 490.52 & 0.9023 \\ \hline \multicolumn{5}{c}{**3.5\% 5-HMU/S-DVB Copolymer**} \\ \hline Solvents & \(W_{u}(T)\) & \(\Delta S_{S}\) & \(\Delta H_{S}\) & \(T_{\text{data}}\).