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[0195] Synthesis of Polymer 1 

[0196] A 2-L flask was charged with 3.8 g of Monomer 1, 8.4 g of l-methyl-1-cyclopentyl methacrylate, 4.8 g of 4-hydroxystyrene, and 40 g of tetrahydrofuran (THF) as 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 azobisisobutyroni› trile (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 isopropyl alcohol for precipitation. The precipitated white solid was collected by filtration and vacuum dried at 60° C., yielding Polymer 1. Polymer 1 was analyzed for composition by $^{13}$C- and $^{1}$H-NMR and for Mw and Mw/Mn by GPC. 

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[0197] Synthesis of Polymer 2 

[0198] A 2-L flask was charged with 5.0 g of Monomer 2, 7.3 g of l-methyl-1-cyclohexyl methacrylate, 4.2 g of 4-hy› droxystyrene, 1.0 g of PAG Monomer 2, and 40 g ofTHF as 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 of isopropyl alcohol for precipitation. The precipitated white solid was collected by filtration and vacuum dried at 60° C., yielding Polymer 2. Polymer 2 was analyzed for composi› tion by $^{13}$C- and $^{1}$H-NMR and for Mw and Mw/Mn by GPC. 

## Synthesis Example 2-1 

## Synthesis Example 2-2 

