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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.19 [2012] >
IJCT Vol.19(4) [July 2012] >
| Title: | Synthesis and characterization of soluble and transparent co-polyimides with controlled glass transition temperature |
| Authors: | Tian, Xiuzhi
Jiang, Xue
Lu, Hui
Huang, Dan |
| Keywords: | Co-polyimide
Differential scanning calorimetry
Glass transition temperature
Infrared spectrum |
| Issue Date: | Jul-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Two
dianhydrides, namely 4,4'-oxydiphthalic dianhydride and
2,2’-Bis[4-(3,4-dicarboxyphenoxy)phenyl] propane dianhydride, and one diamine
(4,4’-Diaminodiphenyl sulphone), have been
used for the synthesis of a novel co-polyimide
with good solubility, high visible light transparency and high thermal
stability. The solubility in several solvents of polyimides with different
proportion of dianhydrides has been tested, and the glass transition temperature
is determined by differential scanning calorimetry. The polyimide film has been
prepared and the optical transmittance is mensurated.
The polyimides solubility and light transmittance improved by introducing
flexible monomer, and the glass transition temperature of the polyimides is
well controlled by the content of 2,2’-Bis[4-(3,4-dicarboxyphenoxy)phenyl]
propane dianhydride that has the flexible isopropylidene structure. |
| Page(s): | 271-277 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.19(4) [July 2012]
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