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| Content Provider | Springer Nature Link |
|---|---|
| Author | Raj, M. M. Raj, L. M. Shah, T. B. Patel, P. M. |
| Copyright Year | 2010 |
| Abstract | This article aims to modify conventional epoxy resin by blending with four different Mannich base oligomers. These oligomers are similar to phenolic resin matrix and simultaneously function as amino curing agent for epoxy matrix. In this context, Mannich base oligomers were prepared, respectively, by Mannich polycondensation reaction of four phenols namely phenol, m-cresol, resorcinol and 1,5-dihydroxy naphthalene, respectively, with formaldehyde and piperazine in presence of acid catalyst. The resulting oligomers were characterized by elemental analysis, spectral studies (IR and NMR), number average molecular mass $$ {\bar{M}}_{\rm n} $$ estimated by non-aqueous conductometric titration and thermal stability by thermogravimetric analysis (TG). Each of these oligomers was used in resin matrix as a blending component for the modification of commercial epoxy resin for fabricating glass fibre reinforced laminates. Finally, these laminates were evaluated for their synergetic thermal stability, mechanical properties and chemical resistance to different reagents. |
| Starting Page | 1003 |
| Ending Page | 1009 |
| Page Count | 7 |
| File Format | |
| ISSN | 13886150 |
| Journal | Journal of thermal analysis |
| Volume Number | 101 |
| Issue Number | 3 |
| e-ISSN | 15728943 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2010-04-14 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Mannich base Oligomer Curing agent Epoxy Blend Laminate Measurement Science and Instrumentation Inorganic Chemistry Polymer Sciences Analytical Chemistry Physical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical and Theoretical Chemistry Condensed Matter Physics |
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