US EPA

6643301 

Journal Article 

Emulsion polymerization of styrene with disproportionated rosin acid soap as emulsifier 

Mayer, MJJ; Meuldijk, J; Thoenes, D; , 

1996 

Yes 

Journal of Applied Polymer Science
ISSN: 0021-8995
EISSN: 1097-4628 

WILEY-BLACKWELL 

HOBOKEN 

59 

6 

1047-1047 

English 

10.1002/(sici)1097-4628(19960207)59:6<1047::aid-app20>3.3.co;2-v 

WOS:A1996TQ34600020 

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030573313&doi=10.1002%2f%28sici%291097-4628%2819960207%2959%3a6%3c1047%3a%3aaid-app20%3e3.3.co%3b2-v&partnerID=40&md5=5c4dc273c7914b69c19668bd8b1ec092
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Disproportionated rosin acid soap (DRAS) is often applied as an emulsifier. It has been shown that the polymerization rate in a latex with DRAS as an emulsifier can be predicted over a wide range of operating conditions with the solution of the radial population balance over the particle-size distribution and a proper rate coefficient for radical desorption. However, another mechanism shows that nonmonomeric compounds with a soluble bond, which are present in DRAS, may react with a growing chain. Whether the 'desorption mechanism' or the 'inhibition mechanism' will be dominant depends on the ratio of the total rate coefficient for radical transfer and the rate coefficient for propagation of a growing chain end with a nonsaturated compound in DRAS.