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- aggregation classification "A1".
- aggregation creator B383453.
- aggregation creator B383454.
- aggregation creator B383455.
- aggregation creator person.
- aggregation date "2010".
- aggregation format "application/pdf".
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- aggregation isPartOf urn:issn:0024-9297.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Chemistry".
- aggregation title "Demixing and remixing kinetics of poly(2-isopropyl-2-oxazoline) (PIPOZ) aqueous solutions studied by modulated temperature differential scanning calorimetry".
- aggregation abstract "The demixing and remixing kinetics of aqueous solutions of poly(2-isopropyl-2-oxazoline) (PIPOZ) with four different chain lengths (number-average molar mass of 3300-13000 g mol-1) is studied by means ofmodulated temperature differential scanning calorimetry(MTDSC) in both nonisothermal and quasiisothermal modes. The nonisothermal measurements show that the aqueous solutions of all four PIPOZ samples follow the lower critical solution temperature (LCST) phase behavior. Both the LCST and the corresponding polymer weight fraction (fw) decreasewith increasingmolarmass: 33.8 +/- 0.1 degrees C at 29.8 wt % for 3300 g mol-1 shifts to 26.2 ( 0.1 degrees C at 19.8 wt % for 13000 g mol-1. This typical type I phase behavior of aqueous solutions of PIPOZ is in contrast to the typical type II phase behavior of poly(N-isopropylacrylamide) (PNIPAM) which has isomeric repeat units. The demixing and remixing kinetics throughout the phase transition is studied by quasi-isothermal heat capacity measurements. Overall, the response for PIPOZ solutions is markedly faster than for PNIPAM solutions.".
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- aggregation issue "16".
- aggregation startPage "6853".
- aggregation volume "43".
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