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[0195] Synthesis of Polymer 5 

[0196] A 2-L flask was charged with 0.8 g of Monomer 1, 8.4 g of l-methyl-1-cyclopentyl methacrylate, 3.6 g of 4-hydroxystyrene, 3.7 g of 3,5-diiodo-4-hydroxystyrene, 12.1 g of PAG Monomer 3, and 40 g of THF solvent. The reactor was cooled at - 70° C. in nitrogen atmosphere, after which vacuum pumping and nitrogen blow were repeated three times. The reactor was warmed up to room tempera› ture, whereupon 1.2 g of AIBN was added. The reactor was heated at 60° C., whereupon reaction ran for 15 hours. The reaction solution was poured into 1 L of IPA for precipita› tion. The precipitated white solid was collected by filtration and vacuum dried at 60° C., yielding Polymer 5. Polymer 5 was analyzed for composition by $^{13}$C- and $^{1}$H-NMR and for Mw and Mw/Mn by GPC. 

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## Synthesis Example 5 

[0197] Synthesis of Polymer 6 

[0198] A 2-L flask was charged with 1.5 g of Monomer 5, 8.4 g of l-methyl-1-cyclopentyl methacrylate, 3.4 g of 3-hydroxystyrene, 11.0 g of PAG Monomer 2, and 40 g of THF solvent. The reactor was cooled at - 70° C. in nitrogen atmosphere, after which vacuum pumping and nitrogen blow were repeated three times. The reactor was warmed up to room temperature, whereupon 1.2 g of AIBN was added. The reactor was heated at 60° C., whereupon reaction ran for 15 hours. The reaction solution was poured into 1 L ofIPA for precipitation. The precipitated white solid was collected by filtration and vacuum dried at 60° C., yielding Polymer 6. Polymer 6 was analyzed for composition by $^{13}$C- and $^{1}$H-NMR and for Mw and Mw/Mn by GPC. 

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-continued 

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## Synthesis Example 6 

