ICCAS OpenIR
Phase behavior of supercritical CO2/styrene/poly(vinyl chloride) system and synthesis of polystyrene/poly(vinyl chloride) composites
Li, D; Han, BX
2000-06-13
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume33Issue:12Pages:4555-4560
AbstractThe phase behavior of the supercritical (SC) CO2/styrene/poly(vinyl chloride) (PVC) system was studied at 40 degrees C in the pressure range from 80 to 160 bar. The styrene concentration in the fluid phase ranged from 0 to 0.4 mol/L. The mass uptakes of styrene in PVC films before and after depressurization were obtained. A considerable amount of styrene in the films was carried out by CO2 in the venting process. When styrene contains 0.3 mol % initiator 2,2'-azobis(isobutyronitrile) (AIBN), the mass uptake is much higher than that in the absence of the initiator. The mass uptakes can be controlled by soaking time, pressure, and styrene concentration. PVC/polystyrene (PS) composites were prepared by the polymerization of styrene in PVC substrates. Scanning electron microscopy indicates that the original PVC gains are broken into the primary particles in the course of SC CO2 swelling at the low temperature of 40 degrees C, and the PVC primary particles force the PS particles to be well dispersed between them. The mechanical measurements show that the addition of PS not only can toughen brittle PVC but also can reinforce it in the PS content range from 0.074 to 0.24 g/g.
Indexed BySCI
Language英语
WOS IDWOS:000087655500043
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:50[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/75602
Collection中国科学院化学研究所
Corresponding AuthorHan, BX
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Li, D,Han, BX. Phase behavior of supercritical CO2/styrene/poly(vinyl chloride) system and synthesis of polystyrene/poly(vinyl chloride) composites[J]. MACROMOLECULES,2000,33(12):4555-4560.
APA Li, D,&Han, BX.(2000).Phase behavior of supercritical CO2/styrene/poly(vinyl chloride) system and synthesis of polystyrene/poly(vinyl chloride) composites.MACROMOLECULES,33(12),4555-4560.
MLA Li, D,et al."Phase behavior of supercritical CO2/styrene/poly(vinyl chloride) system and synthesis of polystyrene/poly(vinyl chloride) composites".MACROMOLECULES 33.12(2000):4555-4560.
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