Matsuda, Takehisa published the artcileSynthesis of Multifunctional, Nonionic Vinyl Polymers and Their 13C Spin-Lattice Relaxation Times in Deuterium Oxide Solutions, Synthetic Route of 2479-62-1, the publication is Macromolecules (1996), 29(16), 5375-5383, database is CAplus.
A study was conducted to design very hydrophilic vinyl polymers. Various nonionic, water-soluble polymers with hydroxyl or primary amide groups in their side chains were prepared by radical polymerization of corresponding monomers or by polymer reactions to modify side chains derivatized in poly(vinyl ethers). The functional groups interconnecting a hydrophobic main chain and a side chain included ether, secondary and tertiary amide, and ester groups. The number of hydroxyl groups incorporated in the side chains per monomer unit ranged from one to nine, and that of primary amide groups ranged from one to three. The spin-lattice relaxation times (T1) of individual carbon atoms were measured in deuterium oxide (D2O) by an inversion-recovery Fourier transform method as an indicator of chain or group mobility. As for the effect of interconnecting groups on the mobilities of main and side chains, these increased in the following order: ether > ester and tertiary amide > secondary amide. Considerably reduced T1 values were found with increasing number of hydroxyl groups in the side chains. The addition of lithium bromide to D2O solutions substantially increased T1 values for hydroxyl group-derivatized polymers, indicating that intramol. hydrogen bonds responsible for reduced T1 values are broken to enhance chain or group mobility. On the other hand, minimal effect of lithium bromide addition was found for ether- or primary amide-derivatized polymers. These results suggest that, when an ether group is incorporated as an interconnecting group into a vinyl polymer and primary amide groups are well distributed at the terminal ends of the side chains, such a polymer could have high chain and group mobility, which may impart high hydrophilicity. The mol. structure-mobility relationship was discussed in terms of T1 values. It is suggested that a combination of factors, such as the structure of interconnecting group, the structure of hydrophilic group, intra- and interpendant-group interactions, hydrogen bonding, and steric factors, all contribute to T1 values.
Macromolecules published new progress about 2479-62-1. 2479-62-1 belongs to amides-buliding-blocks, auxiliary class Monomers,Acrylamide Monomers, name is N-(2-Amino-2-oxoethyl)acrylamide, and the molecular formula is C5H8N2O2, Synthetic Route of 2479-62-1.
Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics