Abstract
Isotactic polypropylene shows four distinguishable chain conformation with each being a 2 × 1/3 helix1. Different packing geometries lead to three well known crystalline structures (polymorphs), namely the monoclinic α-form, the hexagonal β-form and the triclinic γ-form. The appearance of these structures is critically dependent upon the ciystallization conditions1–5. Among these three crystalline structures, the monoclinic α-form is by far the most common, being found in normal melt-crystallized or solution-crystallized IPP samples. In the industrial practice, therefore, β- and γ-form have been considered as laboratory curiosities2. The practical way for obtaining β-form with relative high purity is to use nucleating agent. Only a few materials are known to nucleate β-form spherulites6,7.
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References
Natta G, Corradini P (1960) Nuovo Cim, Suppl 15: 40
Turner-Jones A, Aizlewood JM, Beckett DR (1964) Makromol Chem 75: 134
Keith HD, Padden FJ Jr, Walker NM, Wyckoff HW (1959) J Appl Phys 30: 1485
Lotz B, Wittmann JC (1986) J Polym Sci, Polym Phys Ed 24: 1541, 1559
Lotz B, Graff S, Wittmann JC (1986) J Polym Sci, Polym Phys Ed 24: 2017
Leugering HJ (1967) Makromol Chem 109: 204
Morrow DR (1969) J Macromol Sci, Phys Ed B3: 53
Shi G, Zhang J (1982) K’o Hsueh Tung Pao (Foreign Lang Ed) 27: 290
Shi G, Zhang J, Jin H (1989) Chinese Patent: CN 1004076B; (1993) US Patent: 5, 231, 126.
Shi G, Zhang X, Qiu Z (1992) Makromol Chem 193: 583
Zhang X, Zhang X, Shi G (1992) Thermochimica Acta 205: 245
Zhang J, Shi G, Cao Y, Wang H (1986) Acta Polym Sin: 241
Jacoby P, Bersted BH, Kissel WJ, Smith CE (1986) J Polym Sci, Polym Phys Ed 24: 461
Shi G, Chu F, Zhou G, Han Z (1989) Makromol Chem 190: 907
Zhou G, He Z, Yu J, Han Z, Shi G (1986) Makromol Chem 187: 633
Shi G, Cao Y, Zhang X, Hong J, Hua X (1992) Chinese J Polym Sci 10: 319
Shi G, Zhang X (1992) Themiochimica Acta 205: 235
Varga J (1986) J Thermal Anal 31: 165
Shi G, Zhang X, Cao Y, Hong J (1993) Makromol Chem 194: 269
Zheng J, Chu F, Zhou G, Shi G (1991) Functional Polymer (in Chinese) 4: 207
Asano T, Fujiwara Y (1978) Polymer 19: 99
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© 1994 Springer-Verlag Berlin Heidelberg
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Shi, G. (1994). Recent Studies on β-Crystalline Form of Isotactic Polypropylene. In: Ghiggino, K.P. (eds) Progress in Pacific Polymer Science 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78759-1_22
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DOI: https://doi.org/10.1007/978-3-642-78759-1_22
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-78761-4
Online ISBN: 978-3-642-78759-1
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