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Rheologica Acta

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22-03-2019 | Original Contribution

Characterization of critical gel state of polyamides by viscoelastic, thermal, and IR measurements

Authors: Takaya Hirayama, Takashi Uneyama, Yuichi Masubuchi

Published in: Rheologica Acta | Issue 5/2019

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Abstract

We examined the liquid-solid transition for polyamides (PA) 6, 66, and 610 by the Chambon-Winter method under cooling. The polyamides exhibited the transition via the critical gel, for which the critical exponent and the stiffness were consistent with those reported under the isothermal measurements for the other polymers. The DSC measurements showed that, for a few materials, the crystallinity at the gelation φ_gel was very small. This result implies that the hydrogen bonding partially stabilizes the critical gel of such polyamides. The FT-IR measurements demonstrated that the hydrogen bonding was formed cooperatively around the gelation temperature. However, we also found that with increasing the molecular weight, the gelation temperature decreased and φ_gel increased for PA6. Besides, φ_gel was smaller for PA66 and PA610 than that for PA6. The mechanism is unknown for these results that locate in the opposite side to the suggested role of hydrogen bonding.

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Acierno S, Grizzuti N, Winter HH (2002) Effects of molecular weight on the isothermal crystallization of poly(1-butene). Macromolecules 35:5043–5048. https://doi.org/10.1021/ma0200423 CrossRef

Acierno S, Di Maio E, Iannace S, Grizzuti N (2006) Structure development during crystallization of polycaprolactone. Rheol Acta 45:387–392. https://doi.org/10.1007/s00397-005-0054-2 CrossRef

Boutahar K, Carrot C, Guillet J (1998) Crystallization of polyolefins from rheological measurements—relation between the transformed fraction and the dynamic moduli. Macromolecules 31:1921–1929. https://doi.org/10.1021/ma9710592 CrossRef

Chambon F, Winter HH (1987) Linear viscoelasticity at the gel point of a crosslinking PDMS with imbalanced stoichiometry. J Rheol 31:683–697. https://doi.org/10.1122/1.549955 CrossRef

Coleman MM, Skrovanek DJ, Painter PC (1986) Hydrogen bonding in polymers: III further infrared temperature studies of polyamides. Makromol Chem Macromol Symp 5:21–33. https://doi.org/10.1002/masy.19860050104 CrossRef

Coppola S, Acierno S, Grizzuti N, Vlassopoulos D (2006) Viscoelastic behavior of semicrystalline thermoplastic polymers during the early stages of crystallization. Macromolecules 39:1507–1514. https://doi.org/10.1021/ma0518510 CrossRef

Dijkstra DJ (2009) Guidelines for rheological characterization of polyamide melts (IUPAC Technical Report). Pure Appl Chem 81:339–349. https://doi.org/10.1351/PAC-REP-08-07-22 CrossRef

Fornes TD, Yoon PJ, Keskkula H, Paul DR (2001) Nylon 6 nanocomposites: the effect of matrix molecular weight. Polymer (Guildf) 42:09929–09940. https://doi.org/10.1016/S0032-3861(01)00552-3 CrossRef

Gelfer M, Horst RH, Winter HH, Heintz AM, Hsu SL (2003) Physical gelation of crystallizing metallocene and Ziegler-Natta ethylene-hexene copolymers. Polymer 44:2363–2371. https://doi.org/10.1016/S0032-3861(03)00077-6 CrossRef

Harings J (2009) Shielding and mediating of hydrogen bonding in amide-based (macro)molecules. Technische Universiteit Eindhoven

Hess W, Vilgis TA, Winter HH (1988) Dynamical critical behavior during chemical gelation and vulcanization. Macromolelcules 21:2536–2542. https://doi.org/10.1021/ma00186a037 CrossRef

Inoue M, Company TR (1963) Studies on crystallization of high polymers by differential thermal analysis. J Polym Sci Part A 1:2697–2709. https://doi.org/10.1002/pol.1963.100010813

Ishisaka A, Kawagoe M (2004) Examination of the time-water content superposition on the dynamic viscoelasticity of moistened polyamide 6 and epoxy. J Appl Polym Sci 93:560–567. https://doi.org/10.1002/app.20465 CrossRef

Itoh T, Miyaji H, Asai K (1975) Thermal properties of α- and γ-forms of nylon 6. Jpn J Appl Phys 14:206–215. https://doi.org/10.1143/JJAP.14.206 CrossRef

Izuka A, Winter HH, Hashimoto T (1992) Molecular weight dependence of viscoelasticity of polycaprolactone critical gels: Macromolecules 25:2422–2428

Laun HM (1979) Das viskoelastisch Verhalten von Polyamid-6-Schmelzen. Rheol Acta 18:478–491CrossRef

Lin YG, Winter HH, Mailin DT, Chien JCW (1991) Dynamic mechanical measurement of crystallization-induced gelation in thermoplastic elastomeric poly(propylene). Macromolecules 24:850–854. https://doi.org/10.1021/ma00004a006 CrossRef

Lopez Mayorga O, Freire E (1987) Dynamic analysis of differential scanning calorimetry data. Biophys Chem 27:87–96CrossRef

Mannella GA, La Carrubba V, Brucato V, Zoetelief W, Haagh G (2011a) No‐flow temperature and solidification in injection molding simulation. AIP Con Proc 1353:689–693. https://doi.org/10.1063/1.3589595

Mannella GA, La Carrubba V, Brucato V et al (2011b) No-flow temperature in injection molding simulation. J Appl Polym Sci 119:3382–3392. https://doi.org/10.1002/app.32987 CrossRef

Marchildon K (2011) Polyamides—still strong after seventy years. Macromol React Eng 5:22–54. https://doi.org/10.1002/mren.201000017 CrossRef

Mours M, Henning Winter H (1995) Viscoelasticity of polymers during heating/cooling sweeps. Ind Eng Chem Res 34:3217–3222. https://doi.org/10.1021/ie00037a006 CrossRef

Mours M, Winter HH (1994) Time-resolved rheometry. Rheol Acta 33:385–397. https://doi.org/10.1007/BF00366581 CrossRef

Muthukumar M (1989) Screening effect on viscoelasticity near the gel point. Macromolecules 22:4656–4658. https://doi.org/10.1021/ma00202a050 CrossRef

Muthukumar M, Winter HH (1986) Fractal dimension of a cross-linking polymer at the gel point. Macromolecules 19:1284–1285. https://doi.org/10.1021/ma00158a064 CrossRef

Nichetti D, Cossar S, Grizzuti N (2005) Effects of molecular weight and chemical structure on phase transition of thermoplastic polyurethanes. J Rheol 49:1361–1376. https://doi.org/10.1122/1.2071987 CrossRef

Pogodina NV, Winter HH (1998) Polypropylene crystallization as a physical gelation process. Macromolecules 31:8164–8172. https://doi.org/10.1021/ma980134l CrossRef

Pogodina NV, Winter HH, Srinivas S (1999) Strain effects on physical gelation of crystallizing isotactic polypropylene. J Polym Sci Part B Polym Phys 37:3512–3519. https://doi.org/10.1002/(SICI)1099-0488(19991215)37:24<3512::AID-POLB12>3.0.CO;2-#

Pogodina NV, Lavrenko VP, Srinivas S, Winter HH (2001) Rheology and structure of isotactic polypropylene near the gel point: quiescent and shear-induced crystallization. Polymer 42:9031–9043. https://doi.org/10.1016/S0032-3861(01)00402-5 CrossRef

Richtering HW, Gagnon KD, Lenz RW, Fuller RC, Winter HH (1992) Physical gelation of a bacterial thermoplastic elastomer. Macromolecules 25:2429–2433. https://doi.org/10.1021/ma00035a021 CrossRef

Sandeman I, Keller A (1956) Crystallinity studies of polyamides by infrared, specific volume and X-ray methods. J Polym Sci 19:401–435. https://doi.org/10.1002/pol.1956.120199303 CrossRef

Schwittay C, Mours M, Winter HH (1995) Rheological expression of physical gelation in polymers. Faraday Discuss 101:93. https://doi.org/10.1039/fd9950100093 CrossRef

Skrovanek DJ, Howe SE, Painter PC, Coleman MM (1985) Hydrogen bonding in polymers: infrared temperature studies of an amorphous polyamide. Macromolecules 18:1676–1683. https://doi.org/10.1021/ma00151a006 CrossRef

Tanner RI (2002) A suspension model for low shear rate polymer solidification. J Nonnewton Fluid Mech 102:397–408. https://doi.org/10.1016/S0377-0257(01)00189-6 CrossRef

Watanabe K, Nagatake W, Takahashi T, Masubuchi Y, Takimoto J, Koyama K (2003) Direct observation of polymer crystallization process under shear by a shear flow observation system. Polym Test 22:101–108. https://doi.org/10.1016/S0142-9418(02)00057-0 CrossRef

Winter HH, Chambon F (1986) Analysis of linear viscoelasticity of a crosslinking polymer at the gel point. J Rheol 30:367–382. https://doi.org/10.1122/1.549853 CrossRef

Winter HH, Mours M (1997) Rheology of polymers near liquid-solid transitions. Neutron Spin Echo Spectrosc Viscoelasticity Rheol 134:165–234. https://doi.org/10.1007/3-540-68449-2_3 CrossRef

Yao Y, Xia X, Mukuze KS, Zhang Y, Wang H (2014) Study on the temperature-induced sol–gel transition of cellulose/silk fibroin blends in 1-butyl-3-methylimidazolium chloride via rheological behavior. Cellulose 21:3737–3743. https://doi.org/10.1007/s10570-014-0349-5 CrossRef

Title: Characterization of critical gel state of polyamides by viscoelastic, thermal, and IR measurements
Authors: Takaya Hirayama
Takashi Uneyama
Yuichi Masubuchi
Publication date: 22-03-2019
Publisher: Springer Berlin Heidelberg
Published in: Rheologica Acta / Issue 5/2019
Print ISSN: 0035-4511
Electronic ISSN: 1435-1528
DOI: https://doi.org/10.1007/s00397-019-01136-0

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