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International Conference on Information Technology and Scientific Management (ICITSM 2010 E-BOOK)

Tianjin,China,12.20-12.21,2010

ISBN: 978-1-935068-40-2 Scientific Research Publishing, USA

E-Book 1078pp Pub. Date: December 2010

Category: Computer Science & Communications

Price: $220

Title: Effects of Stirring Rates and Dodecyl Mercaptan on Nanocapsules Containing N-Octadecane Prepared by Miniemulsion Polymerization
Source: International Conference on Information Technology and Scientific Management (ICITSM 2010 E-BOOK) (pp 183-186)
Author(s): Xuejing Zhang, State Key Laboratory of Hollow Fiber Membrane Materials and Processes,Tianjin Polytechnic University, TJPU Tianjin, P R China
Xingxiang Zhang, State Key Laboratory of Hollow Fiber Membrane Materials and Processes,Tianjin Polytechnic University, TJPU Tianjin, P R China
Jianping Wang, State Key Laboratory of Hollow Fiber Membrane Materials and Processes,Tianjin Polytechnic University, TJPU Tianjin, P R China
Ming You, State Key Laboratory of Hollow Fiber Membrane Materials and Processes,Tianjin Polytechnic University, TJPU Tianjin, P R China
Abstract: Nano-encapsulated n-octadecane (NanoPCMs) was synthesized by miniemulsion polymerization using styrene-divinybenzene co-polymer as shell and n-octadecane as core. The experimental results show that, the stirring rate of 6000 rpm is suitable for the nano-encapsulation. Dodecyl mercaptan (DDM) has great influence on the morphology of NanoPCMs. When DDM was employed in miniemulsion polymerization, the fabricated nanocapsules are almost spherical and their surfaces are smooth. The enthalpy of the nanocapsules is 84 J.g-1, which corresponds to 37 wt% n-octadecane. The super-cooling was not observed in the DSC cooling curve.
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