Promoter type III

Table 1 Trends for material and external variables that promote Type III surfactant behavior...

Material and external variables Trends that promote Type III behavior... 

However, in the context of polymeric surfactants, type III behavior is promoted by decrease in the polarity of the hydrophilic part of the surfactant relative to that of the hydrophobic part. While the polarity level of the hydrophobic part could be much higher than that of a hydrocarbon, the relatively large size of the hydrophilic part promotes type III behavior. Therefore, the relatively high polarity of the hydrophobic part is crucial to the effectiveness of these multifunctional multipolymeric surfactants, as long as the hydrophilic part is either ionic or has a high enough polarity if it is nonionic. 

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