(57) addition polymer containing a repeating unit polycyclic it is [Abstract] functional group substitutions are prepared in the presence of a multicomponent catalyst system containing a single or a palladium metal ion source. The catalyst exhibits good catalytic activity for the polymerization of both...
In addition polymerization the growth of the polymer chain proceeds exclusively by reaction(s) between monomer(s) and reactive site(s) on the polymer chain. The addition of new monomer units occurs one at a time via chain reaction. Each addition of a repeating unit to the growing chain ...
n. A reaction in which unsaturated monomer molecules join together to provide a polymer in which the molecular formula of the repeating unit is identical with that of the monomer. The molecular weight (i.e., M w , M n ) of the polymer so formed is thus the total of the molecular weig...
A terminated silane polymer is produced by reacting an organic derivative of silicon with the terminal groups of polymers that are obtained by a Michael polyaddition reaction of organic compounds that
What are the small molecules that make up a polymer called ? Monomers eg. ethene is the monomer of polythene What is polythene used for ? Its used for plastic bags, bowls, lunch boxes, food wrapping material and buckets What is a repeating unit ? A part of the polymer whose repetition ...
branching of the resulting polymer could not be calcu- lated, we can suggest the following repeating units such as a ¼ 0:23 and c ¼ 0:94 of the polymer struc- ture based on the value b ¼ 1:0 (Figure 2). We examined the effect of reaction medium under the same conditions ...
Addition cross-linked epoxy functional organo-siloxanes polymer and coating composition本发明涉及环氧官能化聚有机硅氧烷树脂,其由聚硅氧烷树脂与每个分子具有至少一个环氧基的硅烷反应而制得,其含有具有下列化学通式的重复单元:E The present invention relates to epoxy-functional polyorganosiloxane resin, a ...
1328–1336 (2007) #2007 The Society of Polymer Science, Japan Theory of Gel Formation Drop-wise Addition of R–Af Solution onto R–Bg Solution Kazumi SUEMATSUy Institute of Mathematical Science, Ohkadai 2-31-9, Yokkaichi 512-1216, Japan (Received June 8, 2007; Accepted August 26, 2007; ...
It is usually preferred that the complex-forming functional group comprises not less than 5% in the polymerization degree of the polymer (namely, not less than 5% of a total of repeating unit numbers). The said Components (1)-(4) are compounded as essential components in this invention, but...
The PMLA polymer was isolated by filtration, washed extensively with methanol and dried to constant weight in a vacuum oven at 50 °C overnight to constant weight. 2.2.4. Synthesis of Poly(methylenelactide-g-l-lactide) (P(MLA-g-LLA)) via Solution Polymerization Poly(methylenelactide-g-l-...