Text this: Rational design and topochemical synthesis of polymorphs of a polymer

 _    _     ______   _____      _____     _____   
| |  | ||  /_   _// |  __ \\   |  ___||  /  ___|| 
| |/\| ||   -| ||-  | |  \ ||  | ||__   | // __   
|  /\  ||   _| ||_  | |__/ ||  | ||__   | \\_\ || 
|_// \_||  /_____// |_____//   |_____||  \____//  
`-`   `-`  `-----`   -----`    `-----`    `---`