The persistence length of adsorbed dendronized polymers
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Supersilyl alk. metals (alkali supersilanides) tBu3SiM without or with donors (Do) like ethers, amines, arom. hydrocarbons are easily obtained by the action of alk. metals M on supersilyl halides tBu3SiX above room temp. in alkanes or donor-solvents like T ...
A novel downstream process is reported for preparative scale prodn. of dimeric IgA, a protein with potential pharmaceutical applications. Time-consuming size exclusion chromatog. was replaced by ceramic hydroxyapatite chromatog. (CHT). A clear baseline sep ...
A family of cationic polyelectrolytes possessing defined chain lengths, narrow chain length distributions, uniform charge d., but substituents of different hydrophilicity at the quaternary ammonium group served as model compds. for adsorption studies. Thes ...
Fully synthetic polymers were used for the prepn. of hydrogel beads and capsules, in a processing scheme that, originally designed for calcium alginate, was adapted to a "tandem" process, that is the combination a phys. gelation with a chem. crosslinking ...
A method for fabricating silocone elastomer stamps with hydrophilic surfaces is provided. The concept of polymer grafting is used to produce the stamps. The stamps thus produced have the great advantage that grafting of a thin hydrophilic polymer on a hydr ...
PROBLEM TO BE SOLVED: To provide a method for producing a silicone elastomer stamp with a hydrophilic surface. SOLUTION: The method for fabricating silicone elastomer stamps with hydrophilic surfaces is provided. The concept of polymer grafting is used to ...
In order to describe the different events occurring during the anionic polymerization of polyamide 12 (PA12), a general concept of a time, temperature, and transformation (TTT) diagram was established and related to reactive processing conditions. Polymeri ...
A review, with 17 refs., on research carried out by the polymer reaction engineering group at EPFL in reaction engineering, including kinetic modeling of polymn. reactions (lab. and pilot scale reactors), free radical, polyepoxydation, polycondensation. De ...