INHOMOGENEITIES OF POLYSTYRENE GELS PREPARED FROM SEMIDILUTE SOLUTIONS

摘要：

Polymer gels are roughly classified into chemical gels and physical ones, depending on whether the cross-linking is made of covalent bonds or physical interaction, such as hydrogen bonds, electrostatic interaction, and hydrophobic association. Most of chemical gels are prepared by conventional radical copolymerization of monomers and cross-linking agents and the resultant gel is a kind of assembly of finite microgel clusters tied together.1 Polymer gels prepared by free radical copolymerizing process always formed microgels at lower monomer concentration, e.g.<20% for PS,2 and large inhomogeneities are formed in the gels for that clusters are always formed during the pregel process. Cross-linking of polystyrene chains in solution results in the formation of an expanded highly swollen one-phase gel.3

作者: Ruigang Liu Xia Gao Yong Huang Wilheltn Oppermann

作者单位: State Key Laboratory of Polymer Physics and Chemistry,Joint Laboratory of Polymer Science and Materi Beijing Centre of Physical and Chemical Analysis,Beijing Academy of Sciences and Technology,Beijing Institute of Physical Chemistry,Technical University of Clausthal,Arnold-Sommerfeld Strasse 4,38678

会议类型: 国际会议

会议名称: International Symposium on Polymer Physics(2008年国际高分子物理学术会议PP2008)

会议地点: 厦门

会议语种:英文

页码: 204-205

在线出版日期: 2008-06-08（万方平台首次上网日期，不代表论文的发表时间）