content_image/907763.jpg content_image/907755.jpg content_image/907764.jpg content_image/907756.jpg
[0196] Synthesis of Polymer 3 

[0197] A 2-L flask was charged with 1.9 g of Monomer 3, 5.2 g of l-(cyclopropyl-l-yl)-1-methylethyl methacrylate, 3.5 g of 3-fluoro-4-(methylcyclohexyloxy)styrene, 4.8 g of 3-hydroxystyrene, 11.2 g of PAG Monomer 3, and 40 g of 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 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 precipi› tated white solid was collected by filtration and vacuum dried at 60° C. yielding Polymer 3. Polymer 3 was analyzed for composition by $^{13}$C- and $^{1}$H-NMR and for Mw and Mw/Mn by GPC. 

<img src='content_image/907763.jpg'>

<img src='content_image/907755.jpg'>

[0198] Synthesis of Polymer 4 

[0199] A 2-L flask was charged with 2.5 g of Monomer 4, 6.4 g of l-methyl-1-cyclopentyl methacrylate, 4.2 g of 4-hydroxystyrene, 11.0 g of PAG Monomer 2, and 40 g of 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 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 precipi› tated white solid was collected by filtration and vacuum dried at 60° C., yielding Polymer 4. Polymer 4 was analyzed for composition by $^{13}$C- and $^{1}$H-NMR and for Mw and Mw/Mn by GPC. 

<img src='content_image/907764.jpg'>

<img src='content_image/907756.jpg'>

