Abstract
Temperature-sensitive poly(glycidol)-b-poly(N-isopropylacrylamide) block copolymers (PGl55PNIPAAmy) were synthesised and their aqueous solutions investigated by different methods including differential scanning calorimetry (DSC), UV-VIS spectroscopy as well as dynamic and static light scattering. The cloud point temperature (T c) depended on the composition of the investigated block copolymers and increased with decreasing length of the PNIPAAm block in PGl55PNIPAAmy copolymers. In contrast, the enthalpy of phase separation of PNIPAAm segments measured by DSC decreased with decreasing length of the PNIPAAm block in the polymer. These findings can be correlated with the behaviour of homo-PNIPAAm with similar molecular weights indicating that the influence of PGl on the local environment and phase separation of PNIPAAm chains is similar to the influence observed for PNIPAAm chains bearing different low molecular weight end group. Using DLS measurement, it was shown that the aggregation process depended on the PGl/PNIPAAm block ratio. If the PGl/PNIPAAm ratio was low, stable core-shell aggregates were formed. In contrast, the tendency to formation of large unstable, loose aggregates was observed for copolymers with high PGl/PNIPAAm ratio.
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Liu M, Fu Z, Wang Q, Xu J, Fan Z (2008) Eur Polym J 44:4122–4128
Bonné T, Lüdkte K, Jordan R, Štěpánek P, Papadakis C (2004) Colloid Polym Sci 282:833–843
Wang D, Liu J, Ye G, Wang X (2009) Polymer 50:418–427
Albrecht K, Mourran A, Möller M (2006) Adv Polym Sci 200:57–70
Rapoport N (2007) Prog Polym Sci 32:962–990
Glass R, Arnold M, Blümmel J, Küller A, Möller M, Spatz JP (2003) Adv Funct Mater 13:569–575
Gorzolnik B, Mela P, Möller M (2006) Nanotechnology 17:5027–5032
Cohen Stuart MA (2008) Colloid Polym Sci 286:855–864
Dimitrov I, Trzebicka B, Müller A, Dworak A, Tsvetanov C (2007) Prog Polym Sci 32:1275–1343
Liu R, Fraylich M, Saunders B (2009) Colloid Polym Sci 287:627–643
Gohy JF, Willet N, Varshney S, Zhang JX, Jerome R (2001) Angew Chem Int Ed 40:3214–3216
Bajpai AK, Shukla KS, Bhanu S, Kankane S (2008) Prog Polym Sci 33:1088–1118
Chen W, Wei H, Li S, Feng J, Nie J, Zhang X, Zhuo R (2008) Polymer 49:3965–3972
Tang T, Castelletto V, Parras P, Hamley I, King S, Roy D, Perrier S, Hoogenboom R, Schubert U (2006) Macromol Chem Phys 207:1718–1726
Schild HG, Tirrel DA (1990) J Phys Chem 94:4352–4356
Kuckling D (2009) Colloid Polym Sci 287:881–891
Schild HG (1992) Prog Polym Sci 17:163–249
Topp MD, Dijkstra PJ, Talsma H, Feijen J (1997) Macromolecules 30:8518–8520
Virtanen J, Holappa S, Lemmetyinen H, Tenhu H (2002) Macromolecules 35:4763–4769
Tong Z, Zeng F, Zheng X (1999) Macromolecules 32:4488–4490
Boutris C, Chatzi E, Kiparissides C (1997) Polymer 38:2567–2570
Xia Y, Burke N, Stoever H (2006) Macromolecules 39:2275–2283
Huber S, Hutter N, Jordan R (2008) Colloid Polym Sci 286:1653–1661
Kuckling D, Harmon ME, Frank CW (2002) Macromolecules 35:6377–6383
Salgado-Rodríguez R, Licea-Claverie A, Arndt KF (2004) Europ Polym J 40:1931–1946
Mendrek S, Mendrek A, Adler HJ, Walach W, Dworak A, Kuckling D (2008) J Polym Sci, Part A: Polym Chem 46:2488–2499
Tokar R, Kubisa P, Penczek S, Dworak A (1994) Macromolecules 27:320–322
Dworak A, Trzebicka B, Utrata A, Walach W (2003) Polym Bull 50:47–54
Tiktopulo EI, Bychkova VE, Ricka J, Ptitsyn OB (1994) Macromolecules 27:2879–2882
Shibayama M, Mizutani S, Nomura S (1996) Macromolecules 29:2019–2024
Lowe T, Vitrenen J, Tenhu H (1999) Langmuir 15:4259–4265
Cheng H, Schen L, Wu C (2006) Macromolecules 36:2325–2329
Zhang Y, Wu C, Fang Q, Zhang Y (1996) Macromolecules 29:2494–2497
Wu C, Wu P, Ma X (1996) J Polym Sci, Part B: Polym Phys 34:221–227
Qiu X, Wu C (1997) Macromolecules 30:7921–7926
Schilli C, Zhang M, Rizzardo E, Thang S, Chong Y, Edwards K, Karlsson G, Müller A (2004) Macromolecules 37:7861–7866
Burchard W (1999) Adv Polym Sci 143:113–194
Acknowledgements
The authors appreciate the support of the European Graduate College “Advanced Polymer Materials” (EGC 720) founded by Deutsche Forschungsgemeinschaft (DFG). The authors are also thankful to Prof. Dr. K.-F. Arndt (Fachrichtung Chemie und Lebensmittelchemie, Technische Universität Dresden) for the use of DLS and SLS system as well as to Dr. A. Henke and Dr. R. Hoogenboom (DWI an der RWTH Aachen) for help in interpretation of results.
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Mendrek, S., Mendrek, A., Adler, HJ. et al. Temperature-sensitive behaviour of poly(glycidol)-b-poly(N-isopropylacrylamide) block copolymers. Colloid Polym Sci 288, 777–786 (2010). https://doi.org/10.1007/s00396-010-2203-0
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DOI: https://doi.org/10.1007/s00396-010-2203-0