𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Template photopolymerization of methacrylic acid in water—V. Low molecular weight templates

✍ Scribed by Jadwiga Matuszewska-Czerwik; Stefan Poński


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
174 KB
Volume
28
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis


Template photopolymerization of methacrylic acid in an aqueous system in the presence of two templates, (polyethylene glycol) PGE or poly(dimethylaminoethyl methacrylate) (PDAMA) with degree of polymerization about 50, was examined. The rate constants for template propagation and termination were calculated and compared with the corresponding constants for non-template polymerization and polymerization in the presence of templates with higher molecular weights. It is concluded that, for both systems under investigation, template-effects occur.


📜 SIMILAR VOLUMES


Template photopolymerization of methacry
✍ Jadwiga Matuszewska-Czerwik; Stefan Poklowiński 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 238 KB

Initiation rate for the polymerization of methacrylic acid in water, in the absence and in the presence of polyvinylpyrrolidone as a template, have been determined by the inhibition method. A water-soluble inhibitor (2,2,6,6-tetramethyl-4-hydroxy-piperidine-l-oxyl) was used. The rate constants for t

Matrix-induced variation in kinetics and
✍ P. Aravindakshan; Ameeta Bhatt; V. G. Kumar 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 144 KB 👁 2 views

Polymerization of synthetic monomers is known to be influenced by the solvent, initiator system, dilution, temperature, etc. Substrates like starch granules, when used for graft copolymerization, can be expected to provide a drastically different environment for the monomers (as compared to the bulk

The use of different diols in the synthe
✍ Kari Hiltunen; Jukka V. Seppälä 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB 👁 2 views

The synthesis of low-molecular-weight (M V w (GPC) õ 72000 g mol) lactic- acid-based telechelic prepolymers by condensation polymerization of L-lactic acid was investigated. All polymerizations were carried out in the melt, using tin(II)octoate as catalyst, different diols, and different polymerizat