The coagulation and phenyl stacks on the surfaces of polystyrene microparticles

Authors
Citation
W. Xu et Zy. Hua, The coagulation and phenyl stacks on the surfaces of polystyrene microparticles, CHEM J CH U, 19(10), 1998, pp. 1684-1688
Citations number
12
Language
CHINESE
art.tipo
Article
Categorie Soggetti
Chemistry
Journal title
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN journal
0251-0790 → ACNP
Volume
19
Issue
10
Year of publication
1998
Pages
1684 - 1688
Database
ISI
SICI code
0251-0790(199810)19:10<1684:TCAPSO>2.0.ZU;2-N
Abstract
The scanning tunneling microscopy (STM) was used to investigate polystyrene microparticles, The STM images show that the polystyrene surfaces have dif ferent modes of coagulation, In some regions, the polymer chains are found to be orderly packed without entanglement. In some proper case, the phenyl groups in the same chain can stack up as a parallel-displaced (PD) structur e, similar to that predicted for benzene dimers, The polystyrene microparti cles swelled with a mount of benzene was also investigated, the polymer cha ins with helical structures as well as the polymer chains with distortion c an be observed, The existence of the orderly-packed polymer chains and phen yl stacks may be due to the fact that styrene monomer stack in an orderly f ashion in some parts within micromicellae.