Abstract: A polythioether includes a structure having the formula I —R1—[—S—(CH2)2—O—[—R2—O—]m—(CH2)2—S—R1—]n—  I wherein R1 denotes a C2-6 n-alkylene, C3-6 branched alkylene, C6-8cycloalkylene or C6-10 alkylcycloalkylene group, —[(—CH2—)p—X—]q—(—CH2—)r—, or —[(—CH2—)p—X—]q—(—CH2—)r— in which at least one —CH2— unit is substituted with a methyl group, R2 denotes a C2-6 n-alkylene, C2-6 branched alkylene, C6-8 cycloalkylene or C6-10 alkylcycloalkylene group, or —[(—CH2—)p—X—]q—(—CH2—)r—, X denotes one selected from the group consisting of O, S and —NR6, R6 denotes H or methyl, m is a rational number from 0 to 10, n is an integer from 1 to 60, p is an integer from 2 to 6, q is an integer from