Photoactivated Trigonal 14 initiation

Figure 2. Photopolymerization exotherm trace. Rate of sample heat change vs. time at 40° C. Photoactivated Trigonal 14 initiation of lauryl acrylate polymerization.

Figure 6. Exotherm rate at peak, —dH/dt (peak), vs. irwident light intensity for photoactivated Trigonal 14 initiated lauryl acrylate polymerizatiorts (cf. Table IV). , Series VIII O, Series IX and Series X.

Peroxide initiated polymerizations (scan 30°-250°C) of lauryl acrylate (LA), I,6-hexanediol diacrylate (HDDA), neopentyl glycol diacrylate (NPGDA), and trimethylol propane triacrylate (TMPTA) revealed total polymerization heats per mole of C=C of 19.2, 17.6, 16,7, and 15.4 kcal, respectively. PhotoactIvated Trigonal 14 initiated polymerizations at 40° yielded total polymerization heats per mole of C=C of 17.4, 11.7, 8.2, and 9.1 kcal for LA, HDDA, NPGDA, and TMPTA, respectively. At 60°C the photopolymerization heats for the latter three monomers increased to 16.6, 9.7, and 10.2 kcal per mole of C=C, respectively. 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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