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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: J Esthet Restor Dent. 2018 Nov 5;31(2):153–159. doi: 10.1111/jerd.12437

Table 1.

Combination of isocyanates with thiols for the composition of the six thio-urethane oligomers used in the study.

Thiol (abbreviation) Isocyanate (abbreviation) Thio-urethane formed
Pentaerythritol tetra-3-mercaptopropionate (PETMP) 1,6-Hexanediol-diissocyante (aliphatic, AL) P_AL
Pentaerythritol tetra-3-mercaptopropionate (PETMP) 1,3-bis(1-isocyanato-1-methylethyl)benzene (aromatic, AR) P_AR
Pentaerythritol tetra-3-mercaptopropionate (PETMP) Dicyclohexylmethane 4,4’-Diisocyanate (cyclic, CC) P_CC
Trimethylol-tris-3-mercaptopropionate (TMP) 1,6-Hexanediol-diissocyante (aliphatic, AL) T_AL
Trimethylol-tris-3-mercaptopropionate (TMP) 1,3-bis(1-isocyanato-1-methylethyl)benzene (aromatic, AR) T_AR
Trimethylol-tris-3-mercaptopropionate (TMP) Dicyclohexylmethane 4,4’-Diisocyanate (cyclic, CC) T_CC