Paper Title:
Study on the Formation and Variation of Monodisperse Nano-Sized Polystyrene Beads by Suspension Polymerization with Hydrophilic Polymer as a Stabilizer
  Abstract

We found that monodisperse polymeric particles with diameters in the range of a few hundred nanometers can be prepared by suspension polymerization with water as its dispersing medium. The ratio between monomer and water was selected to be 10 and polymerization conducted at 70oC. Azobisisobutyronitrile was employed as an initiator and a polymer with strong hydrophilic end groups as a stabilizer. Particle diameter was found to vary between 100 and 200 nm depending on reaction conditions. An increase in monomer concentration contributes to an increase in particle diameter and deviation from monodispersity. The weight average molecular weight of polystyrene beads was found to be dependent on the reaction temperature and initiator concentration. Glass transition was determined to be between 100 and 105oC.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
2255-2258
DOI
10.4028/www.scientific.net/AMR.79-82.2255
Citation
J. Y. Moon, M. S. Park, "Study on the Formation and Variation of Monodisperse Nano-Sized Polystyrene Beads by Suspension Polymerization with Hydrophilic Polymer as a Stabilizer", Advanced Materials Research, Vols. 79-82, pp. 2255-2258, 2009
Online since
August 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hong Chi Zhao, Jian Ping Deng, Zhi Wei Liu, Peng Yang, Lian Ying Liu, Yu Feng Sun, Jian Wu Zhu, Wan Tai Yang
Abstract:Copolymerization of MAn and CHDDVE was conducted by using azobisisobutyronitrile (AIBN) or benzoyl peroxide (BPO) as the initiator, ethyl...
741
Authors: Gang Qiang Geng, Xin Jun Liu, Gong Xun Bian
Abstract:With silane coupling agent on silica aerogels by modification pretreatment, we obtained the core-shell structure of polystyrene grafted...
93
Authors: Ri Qing Chen, Fu Xiang Chu, Chun Peng Wang, Elodie Bourgeat-Lami, Muriel Lansalot
Abstract:Ethyl cellulose was hybridized with methyl methacrylate and butyl acrylate via mini-polymerization. The polymerization process was traced to...
804
Authors: Hong Xiang Zhu, Shuang Fei Wang, Ying Hui Wang, Nan Nan Xia, Hui He
Abstract:In this paper, a sizing agent applied in papermaking was synthesized via emulsion polymerization using styrene (St), methyl acrylic acid...
2755
Authors: Yong Sheng Ma, Lin Tong Wang, Xian Hui Sun, Yun Fa Chen, Zhi Fu Dou, Guan Qun Lu
Chapter 13: Polymeric Materials
Abstract:Emulsion copolymerization of methyl acrylate, styrene, acrylamide, acrylonitrile and homemade cationic monomer was studied. A series of clean...
2328