Studies on the thermal stability and structural characterization of star polysiloxane
Fan, ZD; Xie, ZM
AbstractThe low temperature properties of polydimethysiloxane ( PDMSN ) containing hexaphenylcyclotrisilazane (P-3(N)) and the commerical PDMS were comparable according to their DSC data. The glass transition temperature of PDMSN was - 120 degrees C. After heating for 24 hours at 350 degrees C in a sealed N-2 system,the weight loss of PDMSN was 4 similar to 10 times lower as that of the commericial PDMS, and decreased with increasing its nitrogen content,thus,its least weight loss was 1.1%. The Si-29-NMR spectra, IR spectra and the relationship between the molecular weight (by GPC) and limiting viscosity number of PDMSN which was synthesized through the polymerization of cyclosiloxane with trilithium salt (P-3(NLi)) Of hexaphenylcyclotrisilazane as an initiator, demonstrated that PDMSN was a star polymer. Also, N,N,N-trimethylhexaphenylcyclotrisilazane, which was prepared quantitatively through the reaction of P-3(NLi) and MeI in the polar solvent, was characterized by the elemental analysis, H-1-NMR and Si-29-NMR spectra, IR spectra. The star polymer nature of PDMSN was also proved indirectly by the characterization of N,N,N-trimethylhexaphenylcyclotrisilazane.
KeywordPolydimethylsiloxane Containing Hexaphenylcyclotrisilazane Star Polymer Thermal Stability
Indexed BySCI
WOS IDWOS:000089889100015
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorFan, ZD
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Fan, ZD,Xie, ZM. Studies on the thermal stability and structural characterization of star polysiloxane[J]. ACTA POLYMERICA SINICA,2000(5):590-593.
APA Fan, ZD,&Xie, ZM.(2000).Studies on the thermal stability and structural characterization of star polysiloxane.ACTA POLYMERICA SINICA(5),590-593.
MLA Fan, ZD,et al."Studies on the thermal stability and structural characterization of star polysiloxane".ACTA POLYMERICA SINICA .5(2000):590-593.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Fan, ZD]'s Articles
[Xie, ZM]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fan, ZD]'s Articles
[Xie, ZM]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fan, ZD]'s Articles
[Xie, ZM]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.