1H NMR study of temperature-induced phase transitions in D2O solutions of poly(N-isopropylmethacrylamide)/poly(N-isopropylacrylamide) mixtures and random copolymers
Result description
Two phase transitions were detected for poly(N-isopropylmethacrylamide) (PIPMAm)/poly(N-isopropylacrylamide) (PIPAAm) mixtures and only single phase transition was found for P(IPMAm/IPAAm) copolymers by 1H NMR spectroscopy. The phase transition temperatures of PIPAAm component are not affected by the presence of PIPMAm in the mixtures; on the other hand, the temperatures of the phase transition of PIPMAm component are affected by the phase separation of the PIPAAm component and depend on the concentration of the solution.
Keywords
poly(N-isopropylmethacrylamide)/poly(N-isopropylacrylamide) mixtures and random copolymerstemperature-induced phase transition1H NMR spectroscopy
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/00216208:11320/05:00000911
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
1H NMR study of temperature-induced phase transitions in D2O solutions of poly(N-isopropylmethacrylamide)/poly(N-isopropylacrylamide) mixtures and random copolymers
Original language description
Two phase transitions were detected for poly(N-isopropylmethacrylamide) (PIPMAm)/poly(N-isopropylacrylamide) (PIPAAm) mixtures and only single phase transition was found for P(IPMAm/IPAAm) copolymers by 1H NMR spectroscopy. The phase transition temperatures of PIPAAm component are not affected by the presence of PIPMAm in the mixtures; on the other hand, the temperatures of the phase transition of PIPMAm component are affected by the phase separation of the PIPAAm component and depend on the concentration of the solution.
Czech name
1H NMR studie teplotou-indukovaných fázových přechodů v D2O roztocích směsí a statistických kopolymerů poly(N-isopropylmethakrylamid)/poly(N-isopropylakrylamid)
Czech description
1H NMR spektroskopií byly ve směsích poly(N-isopropylmethakrylamid) (PIPMAm)/poly(N-isopropylakrylamid) (PIPAAm) detegovány dva fázové přechody, zatímco pro kopolymery P(IPMAm/IPAAm) byl zjištěn jen jeden fázový přechod. Teploty fázového přechodu PIPAAm-složky nejsou ovlivněny přítomností PIPMAm ve směsích; na druhé straně, teploty fázového přechodu PIPMAm-složky jsou ovlivněny fázovou separací PIPAAm-složky a závisí na koncentraci roztoku.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymer
ISSN
0032-3861
e-ISSN
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Volume of the periodical
46
Issue of the periodical within the volume
3
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
7
Pages from-to
677-683
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
CD - Macromolecular chemistry
Year of implementation
2005