Poly-NIPAM Microgels with Different Cross-Linker Densities
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- 作者：Matthias Karg (3)
Sylvain Prévost (4)
Astrid Brandt (4)
Dirk Wallacher (4)
Regine von Klitzing (5)
Thomas Hellweg (6) - 关键词：Microgel ; Volume phase transition ; Thermoresponsive ; SANS ; DLS ; Cross ; linker ; Scaling behavior
- 刊名：Progress in Colloid and Polymer Science
- 出版年：2013
- 出版时间：2013
- 年：2013
- 卷：140
- 期：1
- 页码：63-76
- 全文大小：753 KB
- 参考文献：1. Pelton R (2000) Temperature-sensitive aqueous microgels. Adv Colloid Interface Sci 85:1-3 CrossRef
2. Wu C, Zhou S (1997) Volume phase transition of swollen gels: discontinuous or continuous. Macromolecules 30:574-76 CrossRef
3. Saunders BR, Vincent B (1999) Microgel particles as model colloids: theory, properties and applications. Adv Colloid Interface Sci 80:1-5 CrossRef
4. Shibayama M, Tanaka T (1993) Volume phase transition and related phenomena of polymer gels. In: Dusek (ed) Responsive gels: volume transitions I. Volume 109 of advances in polymer science, 1 edn. Springer, Berlin, pp 1-2
5. Andersson M, Maunu SL (2006) Volume phase transition and structure of poly(N-isopropylacrylamide) microgels studied with1H-NMR spectroscopy in d2o. Colloid Polym Sci 285:293-03 CrossRef
6. Dingenouts N, Nordhausen Ch, Ballauff M (1998) The volume transition in thermosensitive micronetworks as observed by small-angle x-ray scattering. Ber Bunsenges Phys Chem 102(11):1594-596 CrossRef
7. Nayak S, Lyon LA (2005) Soft nanotechnology with soft nanoparticles. Angew Chem Int Ed 44:7686-708. Review
8. Hoare T, Pelton R (2007) Functionalized microgel swelling: comparing theory and experiment. J Phys Chem B 111:11895-1906 CrossRef
9. Das M, Zhang H, Kumacheva E (2006) Microgels: old materials with new applications. Annu Rev Mater Res 36:117-42 CrossRef
10. Wu C, Zhou S (1997) Light scattering study of spherical poly(N-isopropylacrylamide) microgels. J Macromol Sci B36(3):345-55 CrossRef
11. Kim J-H, Ballauff M (1999) The volume transition in thermosensitive core-shell latex particles containing charged groups. Colloid Polym Sci 277:1210-214 CrossRef
12. Varga I, Gilanyi T, Meszaros R, Filipcsei G, Zrinyi M (2001) Effect of cross-link density on the internal structure of poly(N-isopropylacrylamide) microgels. J Phys Chem B 105:9071-076 CrossRef
13. Hoare T, Pelton R (2004) Highly pH and temperature responsive microgels functionalized with vinylacetic acid. Macromolecules 37:2544-550 CrossRef
14. Kratz K, Lapp A, Eimer W, Hellweg T (2002) Volume phase transition and structure of TREGDMA, EGDMA, and BIS cross-linked PNIPA microgels: a small angle neutron and dynamic light scattering study. Colloids Surf A 197(1-):55-7 CrossRef
15. Hellweg Th (2003) Properties of NIPAM-based intelligent microgel particles: investigated using scattering methods. In: Liz-Marzán?LM, Kamat PV (eds) Nanoscale materials, 1st edn. Kluwer, Dordrecht, pp 209-25
16. Kratz K, Hellweg Th, Eimer W (2001) Structural changes in pnipam microgel particles as seen by SANS, DLS, and EM techniques. Polymer 42(15):6531-539 CrossRef
17. Snowden MJ, Chowdhry BZ, Vincent B, Morris GE (1996) Colloidal copolymer microgels of N-isopropylacrylamide and acrylic acid: pH, ionic strength and temperature effects. J Chem Soc Faraday Trans 92(24):5013-016 CrossRef
18. Karg M, Pastoriza-Santos I, Rodriguez-González B, von Klitzing?R, Wellert S, Hellweg T (2008) Temperature, pH, and ionic strength induced changes of the swelling behavior of PNIPAM-poly(allylacetic acid) copolymer microgels. Langmuir 24:6300-306 CrossRef
19. Pelton RH, Chibante P (1986) Preparation of aqueous latices with N-isopropylacrylamide. Colloids Surf 20:247-56 CrossRef
20. Schmidt S, Motschmann H, Hellweg T, von Klitzing R (2008) Thermoresponsive surfaces by spin-coating of PNIPAM-co-PAA microgels. A combined AFM and ellipsometry study. Polymer 49:749-56
21. Schmidt S, Hellweg T, von Klitzing R (2008) Packing density control in P(NIPAM-co-AAc) microgel monolayers: effect of surface charge, pH, and preparation technique. Langmuir 24:12595-2602 CrossRef
22. Nerapusri V, Keddie JL, Vincent B, Bushnak IA (2006) Swelling and deswelling of adsorbed microgel monolayers triggered by changes in temperature, pH, and electrolyte concentartion. Langmuir 22:5036-041 CrossRef
23. Crassous JJ, Ballauff M, Drechsler M, Schmidt J, Talmon Y (2006) Imaging the volume transition in thermosensitive core-shell particles by cryo-transmission electron microscopy. Langmuir 22(6):2403-406 CrossRef
24. Wiedemair J, Serpe MJ, Kim J, Masson JF, Lyon LA, Mizaikoff?B, Kranz C (2007) In-situ AFM studies of the phase-transition behavior of single thermoresponsive hydrogel particles. Langmuir 23:130-37 CrossRef
25. H?fl S, Zitzler L, Hellweg T, Herminghaus S, Mugele F (2007) Volume phase transition of smart microgels in bulk solution and adsrobed at an interface: a combined AFM, dynamic light, and small angle neutron scattering study. Polymer 48:245-54 CrossRef
26. FitzGerald PA, Dupin D, Armes SP, Wanless EJ (2007) In situ observations of adsorbed microgel particles. Soft Matter 3:580-86. No copy
27. Tagit O, Tomczak N, Vancso GJ (2008) Probing the morphology and nanoscale mechanics of single poly(N-isopropylacrylamide) microgels across the lower-critical-solution temperature by atomic force microscopy. Small 4:119-26 CrossRef
28. Burmistrova A, von Klitzing R (2010) Control of number density and swelling/shrinking behavior of P(NIPAM–AAc) particles at solid surfaces. Mater Chem 20:3502-507 CrossRef
29. Burmistrova A, Richter M, Eisele M, üzüm C, von Klitzing R (2011) The effect of co-monomer content on the swelling/shrinking and mechanical behaviour of individually adsorbed PNIPAM microgel particles. Polymers 3:1575-590 CrossRef
30. Shibayama M, Tanaka T, Han CC (1992) Small angle neutron scattering study on poly(N-isopropylacrylamide) gels near their volume-phase transition. J Chem Phys 97(9):6829-841 CrossRef
31. Shibayama M, Tanaka T, Han CC (1992) Small-angle neutron scattering study on weakly charged temperature sensitive polymer gels. J Chem Phys 97(9):6842-854 CrossRef
32. Mears SJ, Deng Y, Cosgrove T, Pelton R (1997) Structure of sodium dodecyl sulfate bound to a poly(NIPAM) microgel particle. Langmuir 13:1901 CrossRef
33. Crowther HM, Saunders BR, Mears SJ, Cosgrove T, Vincent B, King SM, Yu G-E (1999) Poly(NIPAM) microgel particle de-swelling: a light scattering and small-angle neutron scattering study. Colloids Surfaces A Physicochem Eng Asp 152: 327-33 CrossRef
34. Berndt I, Richtering W (2003) Doubly temperature sensitive core-shell microgels. Macromolecules 36:8780-785 CrossRef
35. Berndt I, Pedersen JS, Lindner P, Richtering W (2006) Inlfuence of the shell thickness and cross-link density on the structure of temperature-semsitive poly-N-isopropylacrylamide-poly-N-isopropylmethacrylamide core-shell microgels investigated by small-angle neutron scattering. Langmuir 22:459-68 CrossRef
36. Dingenouts N, Seelenmeyer S, Deike I, Rosenfeldt S, Ballauff M, Lindner P, Narayanan T (2001) Analysis of thermosensitive core-shell colloids by small-angle neutron scattering including contrast variation. Phys Chem Chem Phys 3:1169-174 CrossRef
37. Stieger M, Richtering W, Pedersen JS, Lindner P (2004) Small-angle neutron scattering study of structural changes in temperature sensitive microgel colloid. J Chem Phys 120(13):6197-206 CrossRef
38. Meier-Koll A, Pipich V, Busch P, Papadakis CM, Müller-Buschbaum P (2012) Phase separation in semidilute aqueous poly(N-isopropylacrylamide) solutions. Langmuir 8:8791-798 CrossRef
39. Fernandez-Barbero A, Fernandez-Nieves A, Grillo I, Lopez-Cabarcos E (2002) Structural modifications in the swelling of inhomogeneous microgels by light and neutron scattering. Phys Rev E 66(5):051803/1-0
40. Dusek K (1993) Responsive gels: volume transitions I. Volume 109 of advances in polymer science, 1 edn. Springer, Berlin
41. Dusek K (1993) Responsive gels: volume transitions II. Volume?110 of advances in polymer science, 1 edn. Springer, Berlin
42. Bagnuls C, Bervillier C (1985) Nonasymptotic critical-behavior from field theory at d?-- the disordered-phase case. Phys Rev B 32(11):7209-231 CrossRef
43. Bagnuls C, Bervillier C (1985) A new theoretical constraint on the static critical-behavior of the specific heat. Phys Lett A 107(7):299-04 CrossRef
44. Bagnuls C, Bervillier C (1987) Nonuniversal power laws and crossover from critical to classical behavior. Phys Rev Lett 58(5):435-38 CrossRef
45. Li Y, Tanaka T (1989) Study of the universality class of the gel network system. J Chem Phys 90(9):5161-166 CrossRef
46. Flory PJ, Rehner J (1943) Statistical mechanics of cross-linked polymer networks. i. Rubberlike elasticity. J Chem Phys 11(11):512-20 CrossRef
47. Flory PJ (1953) Principles or polymer chemistry. Cornell University Press, Ithaca/London
48. Eichinger BE, Flory PJ (1968) Thermodynamics of polymer solutions. J Chem Soc Faraday Trans 64:2035-052 CrossRef
49. Hirotsu S, Hirokawa Y, Tanaka T (1987) Volume-phase transitions of ionized N-iospropylacrylamide gels. J Chem Phys 87(2):1392-395 CrossRef
50. Flory PJ, Rehner J (1943) Statistical mechanics of cross-linked polymer networks. ii. Swelling. J Chem Phys 11(11):521-26 CrossRef
51. Flory PJ, Erman B (1982) Theory of elasticity of polymer networks. 3. Macromolecules 15(3):800-06 CrossRef
52. Crassous JJ, Wittemann A, Siebenbürger M, Schrinner M, Drechsler M, Ballauff M (2008) Direct imaging of temperature-sensitive core-shell latexes by cryogenic transmission electron microscopy. Colloid Polym Sci 286:805-12 CrossRef
53. de?Gennes P-G (1979) Scaling concepts in polymer physics. Cornell University Press, Ithaca/London
54. Wong P (1985) Scattering by inhomogeneous systems with rough internal surfaces: porous solids and random-field Ising systems. Phys Rev B 32(11):7417-424 CrossRef
55. Karg M, Wellert S, Pastoriza-Santos I, Lapp A, Liz-Marzán LM, Hellweg T (2008) Poly(N-isopropylacrylamide) microgels with silica nanoparticle core: the volume phase transition/collapse of the polymer shell as seen by small angle neutron scattering and dynamic light scattering. Phys Chem Chem Phys 10:6708-716 CrossRef
56. Provencher SW (1982) A constrained regularization method for inverting data represented by linear algebraic or integral equations. Comput Phys Commun 27:213-17 CrossRef
57. Provencher SW (1982) CONTIN: a general purpose constrained regularization program for inverting noisy linear algebraic and integral equations. Comput Phys Commun 27:229-42 CrossRef
58. Keiderling U, Wiedenmann A (1995) New SANS instrument at the BER II reactor in Berlin, Germany. Physica B 213 and 214:895-97
59. Keller T, Krist T, Danzig A, Keiderling U, Mezei F, Wiedenmann A (2000) The polarized neutron small-angle scattering instrument at BENSC Berlin. Nucl Instrum Methods Phys Res Sect A 451:474-79 CrossRef
60. Keiderling U (1997) A new software package for SANS data processing at the Hahn-Meitner-Institut in Berlin, Germany. Physica B 234:1111-113 CrossRef
61. Keiderling U (2002) The new BerSANS-PC software for reduction and treatment of small angle neutron scattering data. Appl Phys A-Mater Sci Process 74:1455-457 CrossRef
62. Kohlbrecher J (2008) SASfit: a program for fitting simple structural models to small angle scattering data. Paul Scherrer Institut, Laboratory for Neutron Scattering, CH-5232, Villigen
63. Heskins M, Guillet JE (1968) Solution properties of poly(N-isopropylacrylamide). J Macromol Sci Chem A2 2:1441-455 CrossRef
64. Burmistrova A, Richter M, Uzum C, von Klitzing R (2011) Effect of cross-linker density of P(NIPAM-co-AAc) microgels at solid surfaces on the swelling/shrinking behaviour and the youngs modulus. Colloid Polym Sci 289:613-24 CrossRef
65. Kratz K, Hellweg Th, Eimer W (1998) Effect of connectivity and charge density on the swelling and local structural properties of colloidal PNIPA microgels. Ber Bunsenges Phys Chem 102:1603-608 CrossRef
66. Gao J, Frisken BJ (2003) Cross-linker-free N-isopropylacrylamide gel nanospheres. Langmuir 19:5212-216 CrossRef
67. Saunders BR (2004) On the structure of poly(N-isopropylacry- lamide) microgel particles. Langmuir 20:3925-932 CrossRef - 作者单位：Matthias Karg (3)
Sylvain Prévost (4)
Astrid Brandt (4)
Dirk Wallacher (4)
Regine von Klitzing (5)
Thomas Hellweg (6)
3. Physikalische Chemie -Kolloidale Systeme, Universit?t Bayreuth, Universit?tsstra?e 30, 95440, Bayreuth, Germany
4. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
5. Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, TU Berlin, Stra?e des 17. Juni 124, 10623, Berlin, Germany
6. Physikalische und Biophysikalische Chemie, Universit?t Bielefeld, Universit?tsstra?e 25, 33615, Bielefeld, Germany
文摘
Thermoresponsive microgel particles made of the monomer N-isopropylacrylamide (NIPAM) and the cross-linker molecule N,N-methylenebisacrylamide (BIS) were synthesized using three different cross-linker molar ratios. The volume phase transition behavior of these colloids was investigated by means of dynamic light scattering (DLS) and small angle neutron scattering (SANS) covering the different length scales of interest. Both methods provide the temperature of the volume phase transition in good agreement. The volume change as followed by DLS is described using the Flory-Rehner theory, leading to the determination of the spinodal temperature. Furthermore, the network correlation length ξ, which is available from appropriate fits of the measured SANS profiles, was used to study the critical behavior in terms of scaling laws. The results from DLS and SANS show a strong cross-linker density dependence.