Effect of calcium malonate on the formation of β crystalline form in isotactic poly(propylene)

Polymers for Advanced Technologies

Volumn 19, Issue 11, 2008, Pages 1522-1527

  Dou, Qiang ^a   Lu, Qu Liang ^a  

^a NANJING TECH UNIVERSITY   (China)

Author keywords

crystalline form; Calcium malonate; Crystallization; Poly(propylene); Polymorphism

Indexed keywords

CALCIUM; CALCIUM ALLOYS; CRYSTALLINE MATERIALS; CRYSTALLIZATION; IMPACT STRENGTH; NANOCRYSTALLINE ALLOYS; POLYMORPHISM; POLYPROPYLENES; STRENGTH OF MATERIALS;

EFFECT OF CALCIUMS; ISOTACTIC POLIES; ISOTACTIC POLYPROPYLENES; K VALUES; LATTICE MATCHES; MAXIMUM VALUES; NOTCHED IMPACT STRENGTHS; NUCLEATION MECHANISMS; POLY(PROPYLENE);

PROPYLENE;

CRYSTALLIZATION; NUCLEATION; POLYPROPYLENE; TENSILE PROPERTY;

EID: 58049087654     PISSN: 10427147     EISSN: 10991581     Source Type: Journal    
DOI: 10.1002/pat.1160     Document Type: Article

References (53)

1. Varga J. β-Modification of isotactic polypropylene: preparation, structure, processing, properties, and application. J. Macromol. Sci. Phys. 2002; 41: 1121-1171.
2. Grein C. Toughness of neat, rubber modified and filled β-nucleated polypropylene: from fundamentals to applications. Adv. Polym. Sci. 2005; 188: 43-104.
3. Shi G, Zhang X. Effect of β-nucleator content on the crystallization and melting behavior of β-crystalline phase poly (propylene). Thermochim. Acta 1992; 205: 235-243.
4. Shi G, Zhang X, Qiu Z. Crystallization kinetics of β-phase poly(propylene). Makromol. Chem. 1992; 193: 583-591.
5. Shi G, Zhang X, Cao Y, Hong J. Melting behavior and crystalline order of β-crystalline phase poly(propylene). Makromol. Chem. 1993; 194: 269-277.
6. Zhang X, Shi G. The effect of a β-nucleator on the crystallization and melting behavior of ethylene/propylene random and block copolymer. Thermochim. Acta 1994; 235: 49-59.
7. Zhang X, Shi G. Effect of converting the crystalline form from α to β on the mechanical properties of ethylene/propylene random and block copolymer. Polymer 1994; 35: 5067-5072.
8. Tjong SC, Shen JS, Li RKY. Impact fracture toughness of β-form polypropylene. Scripta Metall. Mater. 1995; 33: 503-508.
9. Tjong SC, Shen JS, Li RKY. Mechanical behavior of injection molded β-crystalline phase polypropylene. Polym. Eng. Sci. 1996; 36: 100-105.
10. Tjong SC, Shen JS, Li RKY. Morphological behaviour and instrumented dart impact properties of β-crystalline-phase polypropylene. Polymer 1996; 37: 2309-2316.
11. Cramez MC, Oliveira MJ, Crawford RJ. Effects of nucleating agents and cooling rate on the microstructure and properties of a rotational moulding grade of polypropylene. J. Mater. Sci. 2001; 36: 2151-2161.
12. Trongtorsak K, Supaphol P, Tantayanon S. Effect of calcium stearate and pimelic acid addition on mechanical properties of heterophasic isotactic polypropylene/ethylene-propylene rubber blend. Polym. Test. 2004; 23: 533-539.
13. Sterzynski T, Oysaed H. Structure modification of isotactic polypropylene by bi-component nucleating systems. Polym. Eng. Sci. 2004; 44: 352-361.
14. Li JX, Cheung WL. Effect of mould temperature on the formation of α/β polypropylene blends in injection moulding. J. Mater. Process. Technol. 1997; 63: 472-475.
15. Li JX, Cheung WL. On the deformation mechanisms of β-polypropylene: 1. effect of necking on β-phase PP crystals. Polymer 1998; 39: 6935-6940.
16. 4 staining and lamellar structure of α- and β-PP. J. Appl. Polym. Sci. 1999; 72: 1529-1538.
17. Li JX, Cheung WL, Jia D. A study on the heat of fusion of β-polypropylene. Polymer 1999; 40: 1219-1222.
18. Li JX, Cheung WL. Conversion of growth and recrystallisation of β-phase in doped iPP. Polymer 1999; 40: 2085-2088.
19. Dou Q. Effect of the composition ratio of pimelic acid/calcium stearate bicomponent nucleator and crystallization temperature on the production of β crystal form in isotactic polypropylene. J. Appl. Polym. Sci. 2008; 107: 958-965.
20. Li JX, Cheung WL. Pimelic acid-based nucleating agents for hexagonal crystalline polypropylene. J. Vinyl Add. Tech. 1997; 3: 151-156.
21. Karger-Kocsis J, Varga J. Effects of β-α transformation on the static and dynamic tensile behavior of isotactic polypropylene. J. Appl. Polym. Sci. 1996; 62: 291-300.
22. Varga J, Schulek-Tóth F. Crystallization, melting and spherulitic structure of β-nucleated random propylene copolymers. J. Therm. Anal. 1996; 47: 941-955.
23. Varga J, Ehrenstein GW. High-temperature hedritic crystallization of the β-modification of isotactic polypropylene. Colloid Polym. Sci. 1997; 275: 511-519.
24. Trifonova D, Varga J, Vancso GJ. AFM study of lamellar thickness distributions in high temperature melt-crystallization of β-polypropylene. Polym. Bull. 1998; 41: 341-348.
25. Varga J, Mudra I, Ehrenstein GW. Crystallization and melting of β-nucleated isotactic polypropylene. J. Therm. Anal. Calorim. 1999; 56: 1047-1057.
26. Varga J, Mudra I, Ehrenstein GW. Highly active thermally stable β-nucleating agents for isotactic polypropylene. J. Appl. Polym. Sci. 1999; 74: 2357-2368.
27. Karger-Kocsis J, Moos E, Mudra I, Varga J. Effects of molecular weight on the perforation impact behavior of injection-molded plaques of α- and β-phase isotactic polypropylene. J. Macromol. Sci. Phys. 1999; B38: 647-662.
28. Vancso GJ, Beekmans LGM, Pearce R, Trifonova D, Varga J. From microns to nanometers: morphology development in semicrystalline polymers by scanning force microscopy. J. Macromol. Sci. Phys. 1999; B38: 491-503.
29. Trifonova D, Varga J, Ehrenstein GW, Vancso GJ. Features of the hedritic morphology of β-isotactic polypropylene studied by atomic force microscopy. J. Polym. Sci. Part B Polym. Phys. 2000; 38: 672-681.
30. Karger-Kocsis J, Varga J, Drummer D. Instrumented falling weight impact of coinjection-molded multipolypropylene sandwich plaques containing β-phase polypropylene core. J. Macromol. Sci. Phys. 2002; B41: 881-889.
31. Chen HB, Karger-Kocsis J, Wu JS, Varga J. Fracture toughness of α- and β-phase polypropylene homopolymers and random- and block-copolymers. Polymer 2002; 43: 6505-6514.
32. Menyhard A, Varga J, Molnar G. Comparison of different β-nucleators for isotactic polypropylene, characterisation by DSC and temperature-modulated DSC (TMDSC) measurements. J. Therm. Anal. Calorim. 2006; 83: 625-630.
33. Varga J, Ehrenstein GW, Schlarb AK. Vibration welding of alpha and beta isotactic polypropylenes: mechanical properties and structure. Express Polym. Lett. 2008; 2: 148-156.
34. Juhasz P, Varga J, Belina K, Marand H. Determination of the equilibrium melting point of the β-form of polypropylene. J. Therm. Anal. Calorim. 2002; 69: 561-574.
35. Juhasz P, Varga J, Belina K, Belina G. Efficiency of β-nucleating agents in polypropylene/α-olefin copolymers. J. Macromol. Sci. Phys. 2002; B41: 1173-1189.
36. Varga J, Menyhard A. Crystallization, melting and structure of polypropylene/poly(vinylidene-fluoride). J. Therm. Anal. Calorim. 2003; 73: 735-743.
37. Menyhard A, Varga J, Liber A, Belina G. Polymer blends based on the β-modification of polypropylene. Eur. Polym. J. 2005; 41: 669-677.
38. Menyhard A, Varga J. The effect of compatibilizers on the crystallization, melting and polymorphic composition of β-nucleated isotactic polypropylene and polyamide 6 blends. Eur. Polym. J. 2006; 42: 3257-3268.
39. Huy TA, Adhikari R, Lüpke T, Henning S, Michler GH. Molecular deformation mechanisms of isotactic polypropylene in α- and β-crystal forms by FTIR spectroscopy. J. Polym. Sci. Part B Polym. Phys. 2004; 42: 4478-4488.
40. Lezak E, Bartczak Z, Galeski A. Plastic deformation behavior of β-phase polypropylene in plane-strain compression at room temperature. Polymer 2006; 47: 8562-8574.
41. Lezak E, Bartczak Z. Experimental study of the formation of β- and γ-phase isotactic polypropylene and estimation of the phase composition by wide-angle x-ray scattering. Fibers Text. East. Eur. 2005; 13: 51-56.
42. Lezak E, Bartczak Z. Plastic deformation behavior of β phase isotactic polypropylene in plane-strain compression at elevated temperatures. J. Polym. Sci. Part B Polym. Phys. 2008; 46: 92-108.
43. Xie H, Zhang S, Xie D. An efficient way to improve the mechanical properties of polypropylene/short glass fiber composites. J. Appl. Polym. Sci. 2005; 96: 1414-1420.
44. Li X, Hu K, Ji M, Huang Y, Zhou G. Calcium dicarboxylates nucleation of β-polypropylene. J. Appl. Polym. Sci. 2002; 86: 633-638.
45. Varga J. Crystallization, melting and supermolecular structure of isotactic polypropylene. In Polypropylene: Structure, Blends and Composites, Karger-Kocsis J (ed). Vol. 1, Chapman & Hall: London, 1995; 56-115.
46. Dou Q. Effect of metallic salts of pimelic acid and crystallization temperatures on the formation of β crystalline form in isotactic poly(propylene). J. Macromol. Sci. Phys. 2007; B46: 1063-1080.
47. Dou Q. A comparison of the effects of calcium glutarate and pimelate on the formation of β crystalline form in isotactic poly(propylene). J. Macromol. Sci. Phys. 2008; B47: 127-138.
48. Turner-Jones A, Aizlewood JM, Beckett DR. Crystalline forms of isotactic polypropylene. Makromol. Chem. 1964; 75: 134-158.
49. Norton DR, Kellar A. The spherulitic and lamellar morphology of melt-crystallized isotactic polypropylene. Polymer 1985; 26: 704-716.
50. Mathieu C, Thierry A, Wittmann JC, Lotz B. Specificity and versatility of nucleating agents toward isotactic polypropylene crystal phases. J. Polym. Sci. Part B Polym. Phys. 2002; 40: 2504-2515.
51. Stocker W, Schumacher M, Graff S, Thierry A, Wittmann J-C, Lotz B. Epitaxial crystallization and AFM investigation of a frustrated polymer structure: isotactic poly(propylene), β phase. Macromolecules 1998; 31: 807-814.
52. Kawai T, Iijima R, Yamamoto Y, Kimura T. Crystal orientation of β-phase isotactic polypropylene induced by magnetic orientation of N,N′-dicyclohexyl-2,6-naphthalenedicarboxamide. Po lymer 2002; 43: 7301-7306.
53. Meille SV, Ferro DR, Bruckner S, Lovinger AJ, Padden FJ. Structure of β-isotactic polypropylene: a long-standing structural puzzle. Macromolecules 1994; 27: 2615-2622.