content_image/886211.jpg content_image/886213.jpg content_image/886210.jpg
<img src='content_image/886211.jpg'>

Examples of the polymer comprising the acid labile group› containing repeat units represented by formula (1) or (2) which can afford a high resolution capability and a high sensitivity are shown below, but not limited thereto. 

<img src='content_image/886213.jpg'>

<img src='content_image/886210.jpg'>

