30236
Antifouling alkyne - functionalized poly ( N - hydroxyethyl acrylamide ) ( alkynyl - PHEAA ) and antibacterial alkyne - functionalized poly ( 2 - ( methacryloyloxy ) ethyl trimethylammonium chloride ) ( alkynyl - PMETA ) polymer brushes were clicked on the SS - azide surface .
 Chemical: alkyne; Chemical: poly ( N - hydroxyethyl acrylamide ); Chemical: alkynyl - PHEAA; Chemical: alkyne; Chemical: poly ( 2 - ( methacryloyloxy ) ethyl trimethylammonium chloride ); Chemical: alkynyl - PMETA; Chemical: azide
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: alkyne; Chemical: poly ( N - hydroxyethyl acrylamide ); Chemical: alkynyl - PHEAA; Chemical: alkyne; Chemical: poly ( 2 - ( methacryloyloxy ) ethyl trimethylammonium chloride ); Chemical: alkynyl - PMETA; Chemical: azide