Blends of poly(hydroxypropyl methacrylate) with 4-vinyl-<i>co</i>-<i>N</i>-vinyl-2-pyrrolidone and with vinyltrimethylsilane-<i>co</i>-<i>N</i>-vinyl-2-pyrrolidone copolymers.: The effect of copolymer composition on interpolymer compatibility

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dc.contributor.authorRadic, D
dc.contributor.authorGatica, N
dc.contributor.authorGargallo, L
dc.date.accessioned2025-01-21T01:31:01Z
dc.date.available2025-01-21T01:31:01Z
dc.date.issued2001
dc.description.abstractGlass transition temperatures (Figs. 1, 3), DSC and TGA thermograms (Figs. 2, 4), and Fourier transform infrared (FTIR) spectra (Fig. 5) showed the binary blends (Table 1) of poly(2-hydroxypropyl methacrylate) (PHPMA) with 4-vinylpyridine-co-N-vinyl-2-pyrrolidone (4-VPy-co-VP) to be compatible over the whole range of compositions. The blends of PHPMA with vinyltrimethylsilane-co-N-vinyl-2-pyrrolidone (VTMS-co-VP) were found to be compatible up to VTMS contents of similar to 25 wt. %. The former blends (Figs. 1, 2) are believed to be compatible on account of H-bonding of PHPMA's OH with the 4VPy and VP units of 4VPy-co-VP. In the latter blends, up to 25.7% of VTMS, H-bonds between PHPMA's OH groups and VP units suffice to provide compatibility, but at > 25.7 wt. % VTMS, hydrophobic interactions of the VTMS moieties prevail and phase separation occurs.
dc.fuente.origenWOS
dc.identifier.issn0032-2725
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96961
dc.identifier.wosidWOS:000172500000012
dc.issue.numero11-12
dc.language.isoen
dc.pagina.final827
dc.pagina.inicio823
dc.revistaPolimery
dc.rightsacceso restringido
dc.subjectpolymer-copolymer blends
dc.subjectinterpolymer compatibility
dc.subjectphase separation
dc.subjectpoly(2-hydroxypropyl methacrylate)
dc.subject4-vinylpyridine-co-N-vinyl-2-pyrrolidone and vinyltrimethylsilane-co-N-vinyl-2-pyrrolidone copolymers
dc.titleBlends of poly(hydroxypropyl methacrylate) with 4-vinyl-<i>co</i>-<i>N</i>-vinyl-2-pyrrolidone and with vinyltrimethylsilane-<i>co</i>-<i>N</i>-vinyl-2-pyrrolidone copolymers.: The effect of copolymer composition on interpolymer compatibility
dc.typeartículo
dc.volumen46
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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