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This results from the relative balance between the electrostatic attraction between the SDS and amine nitrogen group which decreases as the charge density decreases with increasing pH , the ion - dipole interaction between the amine nitrogen and SDS sulfate group which is dominant at higher pH , and the hydrophobic interalkyl chain interaction between bound SDS molecules which changes with oligoamine molecular weight .
 Chemical: SDS; Chemical: amine nitrogen; Chemical: amine nitrogen; Chemical: SDS sulfate; Chemical: SDS
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: SDS; Chemical: amine nitrogen; Chemical: amine nitrogen; Chemical: SDS sulfate; Chemical: SDS