TY - JOUR
T1 - Interaction of dendronized polymeric nanocomposites with isomeric cyclohexanediols
AU - Alvarado, Nancy
AU - Fuentes, Irma
AU - Alegría, Luz
AU - Leiva, Angel
AU - Kortaberría, Galder
AU - Eceiza, María Arantxa
AU - Gargallo, Ligia
AU - Radic, Deodato
N1 - Publisher Copyright:
© 2015 Wiley Periodicals, Inc.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Dendronized poly(diethylaminoethyl methacrylamide) (PEAM) was studied in blends containing isomeric cyclic dialcohols. Monomers and polymers were characterized by spectroscopic measurements. The phase behaviors of blends of PEAM with 1,2-, 1,3- and 1,4-cyclohexanediols (1,2-CHD, 1,3-CHD and 1,4-CHD, respectively) were established. Transparent films of the blends exhibited a single glass-transition temperature (Tg). Thermogravimetric analysis (TGA) revealed the temperature at which the polymer releases the small molecules. UV-vis spectra of 1,3-CHD and 1,4-CHD derivatives showed an isosbestic point that indicated the association of the alcohols. FT-IR measurements showed shifts in several absorption bands. The results were analyzed in terms of the side-chain structure and the interactions involved. AFM measurements revealed differences between the polymer and the blends. Compatibilization of blends of PEAM/CHDs occurred via the formation of hydrogen bonds, although hydrophobic interactions could not be disregarded.
AB - Dendronized poly(diethylaminoethyl methacrylamide) (PEAM) was studied in blends containing isomeric cyclic dialcohols. Monomers and polymers were characterized by spectroscopic measurements. The phase behaviors of blends of PEAM with 1,2-, 1,3- and 1,4-cyclohexanediols (1,2-CHD, 1,3-CHD and 1,4-CHD, respectively) were established. Transparent films of the blends exhibited a single glass-transition temperature (Tg). Thermogravimetric analysis (TGA) revealed the temperature at which the polymer releases the small molecules. UV-vis spectra of 1,3-CHD and 1,4-CHD derivatives showed an isosbestic point that indicated the association of the alcohols. FT-IR measurements showed shifts in several absorption bands. The results were analyzed in terms of the side-chain structure and the interactions involved. AFM measurements revealed differences between the polymer and the blends. Compatibilization of blends of PEAM/CHDs occurred via the formation of hydrogen bonds, although hydrophobic interactions could not be disregarded.
KW - cyclohexanediol (CHD)
KW - dendronized poly(diethylaminoethyl methacrylamide)
KW - dendronized polymer
KW - nanocomposites
KW - polymer blends
UR - https://www.scopus.com/pages/publications/84928372115
U2 - 10.1002/app.42267
DO - 10.1002/app.42267
M3 - Article
AN - SCOPUS:84928372115
SN - 0021-8995
VL - 132
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 28
M1 - 42267
ER -