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Articles

Synthesis of DOPO-based spiroorthocarbonate and its application in epoxy resin

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Pages 690-697 | Received 20 Jan 2015, Accepted 30 May 2015, Published online: 27 Jul 2015

Figures & data

Figure 1. FT-IR spectrum of DTHA and DSOC.

Figure 1. FT-IR spectrum of DTHA and DSOC.

Figure 2. 1H NMR spectrum of DTHA and DSOC.

Figure 2. 1H NMR spectrum of DTHA and DSOC.

Figure 3. Effect of DSOC concentration on the conversion ratio of epoxy group.

Figure 3. Effect of DSOC concentration on the conversion ratio of epoxy group.

Figure 4. TGA curves of cured epoxy resins.

Figure 4. TGA curves of cured epoxy resins.

Figure 5. SEM morphologies of fracture surface after impact testing.

Figure 5. SEM morphologies of fracture surface after impact testing.

Scheme 1. Synthesis of DSOC.

Scheme 1. Synthesis of DSOC.

Scheme 2. Copolymerization of DSOC and epoxy resins.

Scheme 2. Copolymerization of DSOC and epoxy resins.

Table 1. Shrinkage ratio of cured epoxy resins with various amounts of DSOC.

Table 2. LOI measurement and UL-94 test of cured epoxy resins.

Table 3. Mechanical properties of cured epoxy resins containing different contents of DSOC.

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