ISSN:
1435-1536
Keywords:
Amphiphilic polymers
;
triblock copolymers
;
lyotropic phases
;
phase diagram
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Linear ethylene oxide-dimethylsiloxane PEO-PDMS-PEO triblock copolymers have been synthesized by hydrosilation of α,ω-dihydropoly(dimethylsiloxane) $$\bar M_n = 750 - 1300$$ ) and α-methyl-ω-propargylpoly(ethylene oxide) $$\left( {\bar M_n = 350 - 750} \right)$$ . Studies by optical microscopy, complementary small-angle x-ray scattering (SAXS), and differential scanning calorimetry (DSC) have shown that the copolymers mixed with water are characterized by lyotropic liquid crystalline phases according to composition and temperature. The binary phase diagrams with varying copolymer composition are reported.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00652871
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