Concept

Chain transfer

Related publications (67)

Influence of carbonate on the ozone/hydrogen peroxide based advanced oxidation process for drinking water treatment

The influence of carbonate on the ozone/hydrogen peroxide process has been investigated. Carbonate radicals, which are formed from the reaction of bicarbonate/carbonate with OH radicals, act as a chain carrier for ozone decomposition due to their reaction ...

2000

Model for random hydrolysis and end degradation of linear polysaccharides: application to the thermal treatment of mannan in solution

Albert Renken

The kinetics for homogeneous hydrolysis of mannan was studied in a batch reactor at temps. from 160 to 220 Deg. A formate buffer ensured a pH of 3.8-4.0, measured at 25 Deg. Samples were analyzed for oligosaccharides at a d.p. of ?6 and also for the total ...

1999

Controlled polymerization of hexa-n-alkylcyclotrisiloxanes with long alkyl groups

Harm-Anton Klok

Hexa-n-alkylcyclotrisiloxanes with side chains ranging from butyl up to decyl were polymerized anionically with cryptated lithium as the counterion. The polymerizations usually yielded polymers with low polydispersity, demonstrating the presence of a singl ...

1997

Transfer and disproportionation reaction of the cyclodextrin glucanotransferase from Klebsiella pneumoniae

Albert Renken

Cyclodextrin glucanotransferases not only transform starch into cyclodextrins, but also catalyze the transfer of cyclodextrins to appropriate acceptors and the disproportionation of linear dextrins. These three reactions are manifestations of a single cata ...

1996

Time-Resolved Measurements of Highly Polymerized Negative-Ions in Radio-Frequency Silane Plasma Deposition Experiments

Christoph Hollenstein, Alan Howling, Laurent Fabien Hubert Sansonnens

The time-resolved fluxes of negative polysilicon hydride ions from a power-modulated rf silane plasma have been measured by quadrupole mass spectrometry and modeled using a simple polymerization scheme. Experiments were performed with plasma parameters sui ...

1994

Characterization of segregation in a tubular polymerization reactor by a new chemical method

Albert Renken, Thierry Meyer

Micromixing in a tubular polymn. reactor is characterized by the mol. wt. of polystyrene obtained in the presence of a chain transfer agent. Monomer and the transfer agent are fed sep. into the reactor. For const. overall inlet concns., the mean mol. wt. p ...

1990

High-molecular-weight, water-soluble polyammonium compounds

Jutta Christine Wandrey

A method is described for copolymg. diallyldimethylammonium chloride (I) with diallyl malonate (II), diallyl fumarate, acrylamide, or a similar monomer to prep. resins which were useful as elec. conducting coatings on paper, as flocculating agents, etc. Th ...

(Akademie der Wissenschaften der DDR, Ger. Dem. Rep.).1977

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