𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Grafting of polyesters onto carbon black. III. Polymerization of β-propiolactone initiated by quaternary ammonium carboxylate groups on the surface of carbon black

✍ Scribed by Norio Tsubokawa; Akira Funaki; Yasuo Sone

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
379 KB
Volume
28
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

✦ Synopsis

By use of carbon black containing quaternary ammonium carboxylate (COO-N+Rd groups as catalyst, the anionic ring opening polymerization of P-propiolactone (PL) was carried out a t 5OOC. Although carbon black itself was unable to initiate the polymerization of PL, carbon black containing COO-N+R,j groups, which was prepared by the reaction of carboxyl groups with corresponding quaternary ammonium hydroxide, was found to be able to initiate the polymerization. The carbon black obtained from the polymerization gave a stable colloidal dispersion in an organic solvent, and it was confirmed that the polyester formed was effectively grafted onto the surface. In addition, the effect of quaternary ammonium countercation on the polymerization was investigated.

📜 SIMILAR VOLUMES

Introduction of peroxide groups onto car
Introduction of peroxide groups onto carbon black surface by radical trapping and radical graft polymerization of vinyl monomers initiated by the surface peroxide groups
✍ Shinji Hayashi; Satoshi Handa; Norio Tsubokawa 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 498 KB 👁 1 views

The introduction of peroxide groups onto carbon black surface was achieved through the trapping of the peroxide radicals formed by the decomposition of polymeric peroxide, such as poly(tetraethy1ene glycol peroxyadipate) (ATPPO), and bis-peroxide, such as l,l'-bis(t-buty1dioxy)cyclohexane (Perhexa-C