Super-Low Temperature UV Polymerization of TEGDMA

doi:10.7517/j.issn.1674-0475.2005.05.321

Abstract

Abstract: TEGDMA was polymerized by UV radiation at different temperatures; polymerization conversion and dark reaction process were investigated by NIR spectroscopy. Results indicated that, when the polymerization temperature is lower, the conversion is lower but the dark reaction process is more distinct. DMTA results showed that, DMTA curves of samples polymerized at 20, 0,(-20,) and -40 ℃ are similar, however, lgE′ and T_g decrease with the continuous descent of temperature. The results also indicated that all α relaxed peaks are wide, which illuminates that the degree of crosslink are uniform in all films polymerized at different temperatures.

Key words: super-low temperature, photopolymerization, dark reaction, NIR spectroscopy

CLC Number:

TQ57

LÜ Bo, NIE Jun. Super-Low Temperature UV Polymerization of TEGDMA[J]. Imaging Science and Photochemistry, 2005, 23(5): 321-326.

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