ICCAS OpenIR
Crystallization and melting behaviors of PPC-BS/PVA blends
Zhang, ZH; Mo, ZS; Zhang, HF; Wang, XH; Zhao, XJ
2003-08-18
Source PublicationMACROMOLECULAR CHEMISTRY AND PHYSICS
ISSN1022-1352
Volume204Issue:12Pages:1557-1566
AbstractThe isothermal crystallization and melting behaviors of poly(propylene carbonate) end-capped with benzenesulfonyl/poly (vinyl alcohol) (PPC-BS/PVA) blends over rich PVA composition range were first investigated by differential scanning calorimetry (DSC). PPS-BS/PVA interaction parameter, chi(12), calculated from equilibrium melting temperature depression was -0.44, revealing miscibility of PPC-BS with PVA in the melt and favorable interactions. The temperature dependence of crystallization rate constant at initial crystallization stage was analyzed using the modified Lauritzen-Hoffman expression. The chain width, a(0), the thickness of a monomolecular layer, b(0), the fold and lateral surface-free energies, sigma(e) and sigma, and the work of chain folding, q, for neat PVA were first reckoned to be 4.50 Angstrom, 4.78 Angstrom, 76.0 erg.cm(-2), and 4.70 kcal.mol(-1), respectively. The values of sigma(e) and q for PVA in PPC-BS/PVA blends exhibited a maximum in the neighborhood of 10/90 PPC-BS/PV, respectively.
KeywordBlend Crystallization Melting Ppc-bs Pva
DOI10.1002/macp.200350012
Indexed BySCI
Language英语
WOS IDWOS:000184918300010
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80690
Collection中国科学院化学研究所
Corresponding AuthorMo, ZS
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Zhang, ZH,Mo, ZS,Zhang, HF,et al. Crystallization and melting behaviors of PPC-BS/PVA blends[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2003,204(12):1557-1566.
APA Zhang, ZH,Mo, ZS,Zhang, HF,Wang, XH,&Zhao, XJ.(2003).Crystallization and melting behaviors of PPC-BS/PVA blends.MACROMOLECULAR CHEMISTRY AND PHYSICS,204(12),1557-1566.
MLA Zhang, ZH,et al."Crystallization and melting behaviors of PPC-BS/PVA blends".MACROMOLECULAR CHEMISTRY AND PHYSICS 204.12(2003):1557-1566.
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