Microencapsulation of dodecanol using PDMC/acacia coacervation

POLY 521

Jie Lian, lindasd126@126.com, Xiang Z. Kong, xzkong@ujn.edu.cn, Xiaoli Zhu, and Zhiguo Zhang. College of Chemistry & Chemical Engineering, University of Jinan, 106 Jiwei Road, Jinan, 250022, China
Complex coacervation using positively charged poly-2-trimethylammonium ethyl methacrylate chloride (PDMC) and Acacia was carried out in order to prepare microcapsules. PDMC was prepared by polymerizing monomer (2-(methacryloyloxy) ethyl) trimethylammonium chloride (DMC). Dodecanol (C12H25OH), a simulacrum of insects' sex pheromones, was used as the core material. Complex coacervation was optimized by varying experimental conditions. It was observed that maximum complex coacervation yield of 89% could be achieved with 4% polymer concentration for the wall materials at Acacia/PDMC ratio of 3.22. Complex coacervation was suppressed by addition of sodium chloride. An encapsulation rate of 60% for dodecanol was obtained with wall/core ratio of 6:1 by weight.
 

Polymers for Remediation and the Environment
6:00 PM-8:00 PM, Tuesday, April 8, 2008 Morial Convention Center -- Hall A, Poster

Division of Polymer Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008