ICCAS OpenIR
Miscibility enhancing in polystyrene blends with a liquid crystalline polymer via incorporating ionic groups - I. Thermal properties and morphologies
Liu, J; He, JS
1998-04-01
Source PublicationACTA POLYMERICA SINICA
ISSN1000-3304
Issue2Pages:196-202
AbstractPolystyrene (PS) was completely immiscible with a liquid crystalline polymer (LCP),PHB/PET copolyester, and their blends had a distinctive two-phase structure. Then PS was chemically modified by introducing sulfonic acid group onto its molecular chains. Thereafter the properties of LCP blends with modified PS, sulfonated polystyrene(SPS), taking five forms:acid form, Li, Na, Mn and Zn salt forms, were carefully characterized with the DSC and SEM. DSC results demonstrate that SPS is miscible with LCP evidenced by exhibiting only one composition dependent T-g. The LCP's T-g's calculated from the Fox Equation were about the same in blends at the studied composition. This means that the requirement of Fox Equation has been met, i.e. LCP is completely miscible with SPS. The miscibility enhancing is confirmed by SEM observations too. LCP/PS blends showed a distinct two phase structure. LCP blends and SPS with low SPS contents (25%) exhibited only a single very smooth texture, whereas those with high SPS contents (75%) had nanometer scaled droplets dispersed through the whole surface. Energy Dispersion confirmed the presence of sulfur-rich structures in those particles.
KeywordMiscibility Ionomer Thermotropic Liquid Crystalline Polymer
Indexed BySCI
Language英语
WOS IDWOS:000076400100013
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74210
Collection中国科学院化学研究所
Corresponding AuthorLiu, J
AffiliationChinese Acad Sci, Inst Chem, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Liu, J,He, JS. Miscibility enhancing in polystyrene blends with a liquid crystalline polymer via incorporating ionic groups - I. Thermal properties and morphologies[J]. ACTA POLYMERICA SINICA,1998(2):196-202.
APA Liu, J,&He, JS.(1998).Miscibility enhancing in polystyrene blends with a liquid crystalline polymer via incorporating ionic groups - I. Thermal properties and morphologies.ACTA POLYMERICA SINICA(2),196-202.
MLA Liu, J,et al."Miscibility enhancing in polystyrene blends with a liquid crystalline polymer via incorporating ionic groups - I. Thermal properties and morphologies".ACTA POLYMERICA SINICA .2(1998):196-202.
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