Abstract
Polysiloxanes with different vinyl contents were synthesized via polycondensation reaction, and characterized by FT-IR and GPC. The effects of photoinitiator, atmosphere, and contents of vinyl groups on UV curing behavior of polysiloxanes were explored, according to the absorption area changing of double bond in FT-IR spectra under UV radiation. Finally, TGA was used to investigate their thermodegradation mechanism. Experiment results indicated that curing rate and thermal stability of the polysiloxanes were improved with the increasing of methylvinylsiloxane units in polysiloxanes with IHT-PI-185 as photoinitiator in nitrogen atmosphere.
| Original language | English |
|---|---|
| Pages (from-to) | 62-66 |
| Number of pages | 5 |
| Journal | Cailiao Gongcheng/Journal of Materials Engineering |
| Issue number | 9 |
| State | Published - Sep 2007 |
Keywords
- Polysiloxane
- Thermodegradation mechanism
- UV curing behavior