Dissolution Inhibitory Effect of Urea Additives on a Carboxyl Polymer Through a Supramolecular Structure

Autor:	Takumi Ueno, Géraldine Rames-Langlade, Yasunari Maekawa, Takao Miwa, Yoshiaki Okabe
Rok vydání:	1998
Předmět:	chemistry.chemical_classification Materials science Polymers and Plastics Hydrogen Organic Chemistry Supramolecular chemistry chemistry.chemical_element Infrared spectroscopy Polymer chemistry.chemical_compound chemistry Amide Materials Chemistry Urea Organic chemistry Imide Dissolution
Zdroj:	Journal of Photopolymer Science and Technology. 11:533-536
ISSN:	1349-6336 0914-9244
DOI:	10.2494/photopolymer.11.533
Popis:	The effect of the addition of carbonyl compounds such as amide, imide, urea, and ester derivatives on the dissolution rate of carboxyl-group-containing polymers in an alkaline solution was investigated. Urea derivatives lowered the dissolution rate of the polymer film more than the other carbonyl compounds did, and 1,3-diphenylurea inhibited the dissolution of the polymer film much more efficiently than other urea derivatives. Structural studies of the dissolution inhibition led to the proposal of a supramolecular structure, in which the urea functionality hydrogen bonded to two carboxyl groups of the polymer to form a hydrophilic domain surrounded by the hydrophobic substituents of the urea derivatives. The existence of this supramolecular structure is supported by the infrared spectra of the urea additives in the polymer films.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e6139c2d480e580ad2b2f6c2e941d624 https://doi.org/10.2494/photopolymer.11.533 Zobrazit plný text záznamu