Living Alternating Copolymerization of a Methylenecyclopropane Derivative with CO to Afford Polyketone with Dihydrophenanthrene-1,10-diyl Groups

2006 ◽  
Vol 207 (17) ◽  
pp. 1546-1555 ◽  
Author(s):  
Daisuke Takeuchi ◽  
Takeshi Okada ◽  
Junpei Kuwabara ◽  
Kohtaro Osakada
2021 ◽  
Vol 12 (12) ◽  
pp. 1776-1786
Author(s):  
Zhou Wang ◽  
Ying Mu

Stereoregular poly(propylene carbonate)s and poly(propylene succinate-block-carbonate)s were synthesized with new chiral salenCo(iii) catalysts carrying bulky substituents.


1996 ◽  
Vol 34 (12) ◽  
pp. 1381-1396 ◽  
Author(s):  
Masaaki Hirooka ◽  
Hiroshi Yabuuchi ◽  
Jiro Iseki ◽  
Yasuto Nakai

1989 ◽  
Vol 62 (4) ◽  
pp. 592-608 ◽  
Author(s):  
J. Hilborn ◽  
B. Rånaby

Abstract EFDM rubbers can be efficiently crosslinked using multifunctional monomers. Several factors must be taken into consideration: 1. Good solubility of the crosslinking agent in the rubber is essential. 2. It is favorable to have a mechanism of crosslinking which gives an alternating addition of rubber and crosslinking agent, as in the case of the stepwise radical thiol-ene system or alternating copolymerization of bis-maleimide with the olefinic rubber. These systems utilize each radical of the photoinitiator to form crosslinks, enhance the rate of crosslinking and prevent homopolymerization of the crosslinking agent. 3. A good match of the UV absorption of the photoinitiator, the UV transmission of the rest of the system, and the UV emission from the lamp is essential. 4. Since disproportionation of photoinitiator radicals in cage is an unwanted side reaction in the rigid rubber system, it is better to choose photoinitiators that mainly recombine to reform a photoactive molecule as before scission.


2015 ◽  
Vol 54 (17) ◽  
pp. 5054-5059 ◽  
Author(s):  
Matthias Tesch ◽  
Johannes A. M. Hepperle ◽  
Henning Klaasen ◽  
Matthias Letzel ◽  
Armido Studer

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