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Formation of spindlelike aggregates and flowerlike arrays of polystyrene-b-poly(acrylic acid) micelles
pubs.acs.org/doi/abs/10.1021/la0358116
In this letter we describe a simple physical method for the ordered aggregation of scattered single spherical polystyrene-b-poly(acrylic acid) (PS-b-PAA) micelles. First, narrow dispersed spindlelike aggregates, about 60 nm in diameter and 1.5 μm in length, are obtained from the aggregation of single spherical PS-b-PAA micelles at 0 °C on a glass slid...
http://www.polymer.cn//ss/zhangwangqing/publicationsshow_4061.html |
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The self-assembly of polystyrene-b-poly (acrylic acid)/polystyrene in water
ACTA POLYMERICA SINICA 期: 3 页: 379-383 出版年: JUN 2005
http://www.polymer.cn//ss/zhangwangqing/publicationsshow_4057.html |
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Expulsion of unimers from polystyrene-block-poly(acrylic acid) micelles
onlinelibrary.wiley.com/doi/10.1002/macp.200500496/abstract
The pH response of the micelles of polystyrene-block-poly(acrylic acid) (PS200-b-PAA78) in water is studied using a combination of techniques: static light scattering (SLS), dynamic light scattering (DLS), and transmission electron microscopy (TEM). The structure of the micelles in dilute aqueous solution is dependent on pH. At pH values...
http://www.polymer.cn//ss/zhangwangqing/publicationsshow_4050.html |
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Immobilization of 12-tungstophosphoric acid on LaSBA-15 and its catalytic activity for alkylation of o-xylene with styrene
Immobilization of 12-tungstophosphoric acid on LaSBA-15 and its catalytic activity for alkylation of o-xylene with styrene
http://www.polymer.cn//ss/fchem/publicationsshow_3571.html |
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“Physical Aging Enhanced Mesomorphic Structure in Melt-Quenched Poly(L-lactic acid)”
The structural evolutions and kinetics of melt-quenched poly(l-lactic acid) (PLLA) during the process of isothermal physical aging below the glass transition temperature (Tg) were investigated by time-resolved infrared spectroscopy. The results show that local ordered structure is developed with aging time. Such local ordered structure shows the same characteristic band at 918 cm–1 as that o...
http://www.polymer.cn//ss/zhangjianming/publicationsshow_3478.html |
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Stability of Hydrogen-bonded Hydroxypropylcellulose /Poly(acrylic acid) Microcapsules in Aqueous Solutions
Hydroxypropylcellulose (HPC), a cellulose derivative, and poly(acrylic acid) (PAA) were assembled onto colloidal SiO2 particles in acidic solutions in a layer-by-layer manner, using hydrogen bonding as the driving force. Monodisperse hollow microcapsules were prepared by the removal of the sacrificial template. Long-term stability of the hydrogen-bonded capsules under various conditions was ...
http://www.polymer.cn//ss/zhangyongjun/publicationsshow_3275.html |
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Synthesis and Properties of Crystalline Dicarboxylated Poly(L-lactic acid) Prepolymers
Crystalline dicarboxylated poly(L-lactic acid)s
(dcPLLAs) with number-average molecular weights (Mn’s) of
103 to 104 g/mol were synthesized via the melt polycondensation
of L-lactic acid (LLA) in the presence of succinic anhydride
(SAD), with tin(II) chloride and toluene-4-sulfonic acid
as binary catalysts. They were characterized by end-group titration,
1H-NMR, differential scanning c...
http://www.polymer.cn//ss/wulinbo/publicationsshow_3154.html |
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12. Partial phase diagram of poly(p-phenylene terephthalamide) copolymers in sulfuric acid
Copolyaramides with 2,5-di-n-hexyl terephthalic acid residues as comonomers were synthesized. Partial phase diagrams were measured for mixtures with concentrated sulfuric acid in the range between 8 and 20% w/w of polymer. Lyotropic phases were observed, but in comparison to homopoly(p-phenylene terephthalamide) the clearing temperatures are lower and the critical concentrations for the forma...
http://www.polymer.cn//ss/wangwei/publicationsshow_3038.html |
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102. Multiple relaxation behaviors of long chain branched polylactic acid
N/A
http://www.polymer.cn//ss/zhigangwang/publicationsshow_2886.html |
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Introduction of β-Cyclodextrin into Polyaspartic Acid Matrix for Adsorption and Time-Release of Ibuprofen
Biodegradable copolymers with molecule inclusion ability was prepared by introduction of β-cyclodextrin into poly(aspartic acid) matrices. The ibuprofen loading and dissolution properties of poly(aspartic acid)–β-cyclodextrin were investigated.
http://www.polymer.cn//ss/caoguiping/publicationsshow_2817.html |
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