Premium
Synthesis of Hybrid Polyacetylene Gels Using Octafunctional POSS Initiator
Author(s) -
Kim KyungMin,
Lim JungHyurk,
Jang NaeYoun,
Kim SungRyong
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200750437
Subject(s) - polyacetylene , polymerization , thermal stability , materials science , polymer chemistry , polymer , acetone , chemical engineering , chloroform , chemistry , organic chemistry , composite material , engineering
Hybrid polyacetylene gels having polyhedral oligomeric silsesquioxanes (POSS) moieties were prepared by polymerization of 2‐ethynylpyridine using octafunctional POSS as an initiator with changing the feed ratio of POSS to 2‐ethynylpyridine. The resulting black polyacetylene gels were not soluble in any organic solvents such as THF, chloroform, methanol, DMF, and acetone. The polyacetylene gels with higher mole ratio of 2‐ethynylpyridine to POSS show higher thermal stability because of the tight polymer network caused by high degree of polymerization. It is proposed that the tether structure between polyacetylene matrix and POSS cages was crucial to the great improvement in thermal stabilities of hybrid polyacetylene gels with POSS.