Ring-opening polymerization-induced crystallization-driven self-assembly of poly-L-lactide-block-polyethylene glycol block copolymers (ROPI-CDSA) Article Open access 17 September 2020 Formation of shish-like fibril crystals from the melt of blends of cyclic and linear polyethylene under shear flow ...
Solid-state radical polymerization Supercritical carbon dioxide impregnation 1. Introduction Applications of polymer-based materials are often extended in situations in which their surface properties play a protagonist role, such as, adhesion, electrical resistance, wettability, permeability, dyes, adsorption ...
In the present application, “copolymerization” is sometimes referred to as“polymerization”, and“copolymer” is sometimes referred to as “polymer”. [4-Methyl-1-Pentene (Co)Polymer Composition] The 4-methyl-1-pentene (co)polymer composition of the present invention contains two different 4-me...
关键词: Copolymers Copolymerization Homopolymerization Microstructure Nuclear magnetic resonance spectroscopy Olefins DOI: 10.1021/ma702410f 被引量: 45 年份: 2008 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 ACS (全网免费下载) ACS Semantic Scholar dx.doi.org adsabs.harvard.edu 查看更多 ...
When catalysts suitable for the polymerization of propylene are applied to the polymerization of 4-methyl-1-pentene, they show a fairly high level of performance but do not prove to be entirely satisfactory in regard to the yield of the 4-methyl-1-pentene polymer per unit weight of the catal...
135 g of a polymer [X′-1] was obtained by the same reaction as in Example 1 except that: the number of hydrogen charges was set to a total of 3; in addition to the first hydrogen charging before the start of polymerization as in Example 1, the second hydrogen charging was performed...
With 4-methyl-1-pentene as the comonomer, for the first time long 1-olefin sequences are observed in an ethene copolymer obtained with a catalytic system poorly isospecific in propene homopolymerization, such as EBTHI. This seems to suggest that the branched comonomer 4-methyl-1-pentene ...
1. A process for producing a 4-methyl-1-pentene copolymer composition by sequential polymerization, which comprises [I] a step of polymerizing 4-methyl-1-pentene in the presence or absence of a minor amount of a C6 -C18 linear 1-olefin in a hydrocarbon liquid medium in the presence of...
(I): ##STR1## wherein R1, R2, R3 and R4, which may be the same or different, each is a hydrogen atom or an alkyl group having up to 18 carbon atoms, and n represents the degree of polymerization and is such that the oligomer has an average molecular weight of about 200 to ...
Living cationic polymerization ofisobutyl vinyl ether(IBVE) has been achived for the first time by the Cl 2/TiCl 4 initiating system CH 2Cl 2 below -70 ℃. 研究了反应时间、反应温度对异丁基乙烯基醚(IBVE)/Cl2/TiCl4聚合反应的影响及其反应活性。