Influence of side group contents of polycarbonate glycol on aggregation structures and mechanical properties of polyurethane elastomers was written by Kojio, Ken;Furukawa, Mutsuhisa;Motokucho, Suguru;Mizokami, Motonori;Yoshinaga, Kohji. And the article was included in Nippon Gomu Kyokaishi in 2012.SDS of cas: 115-84-4 The following contents are mentioned in the article:
Polycarbonate (PC) glycol synthesized from 1,6-hexanediol and 2-butyl-2-ethyl-1,3-propanediol (BEPD) with various ratios were employed to control the mech. property of PC-glycol-based polyurethane elastomers (PUEs). The PUEs were synthesized from PC-glycol, 4,4′-diphenylmethane diisocyanate and 1,4-butanediol by a one-shot method. The degree of microphase separation became weaker with an increase in the BEPD content. This trend results in a decrease in Young’s modulus due to the lack of the formation of crystallized hard segment domains in the PUEs. Tensile strength and strain at break decreased and increased with increasing BEPD content, resp. This result clearly suggests that Bu and Et groups of the BEPD part suppressed the packing of the soft segment under elongation. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4SDS of cas: 115-84-4).
2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.SDS of cas: 115-84-4
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts