Polymers cyclic olefin

Cyclic olefin-based resists, 15 180 Cyclic olefin copolymers (COCs), 10 180 properties of, 10 181t Cyclic olefin-maleic anhydride (COMA) copolymers, 15 177 Cyclic olefin polymers (COP), 10 180 26 945... 

Cyclic olefin copolymers or cyclic olefin polymers (COC or COP)... 

COC or COP Cyclic Olefin Copolymers or Cyclic Olefin Polymers... 

COP or COC Cyclic Olefin Polymers or Cyclic Olefin Copolymers... 

Thermoplastic cyclic olefin polymers can be used for a wide range of applications, such as wire coating materials, agricultural films, and packaging films, and toner resins. Further, optical applications such as plate lenses, including Fresnel lenses have been described (6). 

The same extruder as in wire coating with PE can be used. However, since the cyclic olefin polymer composition has a higher in glass transition temperature than PE, the cylinder temperature of the extruder must be set to a somewhat higher temperature than used in the conventional method. 

Zeonex Nippon Zeon Cyclic olefin polymer... 

C.-H. Choi, S.-Y. Kim, and J.-U. Choi, Method for preparing cyclic olefin polymer having high bulk density and cyclic olefin polymer prepared thereby, US Patent 7202312, assigned to LG Chem, Ltd. (Seoul, KR), April 10, 2007. 

II. 2.1.4. Cyclic Olefin Polymers Benzofuran (16) gives an optically active polymer by cationic polymerization with AlEtCl2 or A1C13 in the presence of an optically active cocatalyst such as P-phenylalanine and 10-camphorsulfonic acid [12,48-50], The optically active polymer is considered to have an erythro- or threodiisotactic structure with no plane of symmetry. Initiator systems of AlCl3/(-)-menthoxytriethyltin, -germanium, and -silicon also give an optically active polymer [51,52],... 

A cyclic olefin polymer (COP) is chosen as the inner polymer film because of its low absorption coefficient in the mid-infrared region and its relatively high heat resistivity ( 140°C). The thickness of the silver film is around 0.1 pm, and the thickness of the polymer film is controlled to be a designed value which gives high reflectivity at the desired wavelength range. 

Shi Y, Wang Y, Abe Y, Matsuura Y, Miyagi M, Sato S, TaniwaM M, Uyama H (1998) Cyclic olefin polymer-coated silver hollow glass waveguides for the inlfared. Appl Opt 37 7758-7762... 

The first group consists of amorphous thermoplastic engineering polymers. These are cyclic olefin polymers (COP) or cyclic olefin copolymers (COC) with ethylene. They were commercialized, for example, as Zeonex (in 1991) and Zeonar (by Zeon), as Topas (Polyplastics), Apel (Mitsui), and Alton (JSR). Topas was originally part of Ticona, before it was sold to Daicel in 2005. A Topas plant with a capacity of 30,000 tpa started up in Oberhausen, Germany, in September 2000. Until that time, world capacity from 4 pilot-scale plants was around 10,000 tpa. 

These cyclic olefin polymers are high-temperature (Tg up to 180 °C) polymers with good chemical resistance, outstanding optical properties, and low moisture absorption. 

In a thermoplastic, the macromolecules are not cross-linked so that the material can melt, i.e., above the glass transition temperature, the material begins to soften. Thermoplastics can be amorphous or semicrystalline. In microfluidics, amorphous polymers are often preferred because of their optical transparency. Amorphous polymers include polymethylmethacrylate (PMMA), polycarbonate (PC), polystyrene (PS), and cyclic olefin polymers (COP) and copolymers (COC). COP and COC, unlike most other polymers, are also transparent for UV Ught... 

Nunes P, Ohlsson P, Ordeig O, Kutter J (2010) Cyclic olefin polymers emerging matraials for lab-rai-a-chip applications. Microfluid Nanofluid 9 145—161... 

Cyclic olefin copolymers are a new class of polymeric materials based on cyclic olefin monomers (as 8,9,10-trinorbom-2-ene) and ethene. These materials are also known as cyclic olefin polymers (COP) when only one single type of cyclic olefin monomer is applied. COC is very transparent, the optical properties are in many ways similar to glass. COC is one of the few transparent polymeric materials able to withstand steam sterilisation. Permeability... 

CYCLIC OLEFIN POLYMERS. See Ethylene-Norbornene Copolymers. 

Cyclopentadiene [542-92-7] (CPD), CsHe, (1), and its more stable dimer, dicy-clopentadiene [77-73-6] (DCPD), C10H12, (2), are the major constituents of hydrocarbon resins, cyclic olefin polymers, and a host of specialty chemicals. They can be transformed into many chemical intermediates used in the production of pharmaceuticals, pesticides, perfumes, flame retardants, and antioxidants. Because of their wide industrial uses, their chemistry has been extensively investigated and documented. Numerous reviews (1-12) have been published on the subject. The production processes and industrial uses of CPD and DCPD are summarized in Reference 13. In addition to the classical organic reactions, CPD forms organic metallic complexes, ferrocene, with transition metals (14). Some of these complexes have been established as excellent olefin polymerization catalysts. Several reviews have been published on this rapid growing field (15-19) (see Single-Site Catalysts). 

As the unique property profiles of cyclic olefin polymers and copolymers, and particularly those of Et-Nb copolymers, become more widely known and understood, new applications and most likely, new formulations will continue to develop. This process will imdoubtedly be furthered hy any cost improvements obtainable via scale economies in production of the base resin, for which the U.S. developmental price in 2001 ranges between 5.70/kg and 6.60/kg at truckload quantities. 

Photoresists Based on COMA Copolymers. Introduction of an anhydride linkage into the cyclic olefin polymer structure leads to a significant and useful improvement in dissolution properties COMA copolymers require a much lower... 

Other experimental 157-nm resists can be considered to be derived from 193-nm CA resists. The homopolymer poly(HFIPA-norbomene) has an optical density of 1.8/)nm (130). First used in 193-nm resist polymers (131), HFIPA-norbomene monomer can be incorporated into cyclic olefin polymers prepared via organometalUc catalysis, and can be copolsrmerized with vinyl monomers such as acrylates or fluorinated acrylates using standard free-radical polymerization to give products with optical densities of less than 3/)um (Fig. 18, lower structure) (132,133). Still other fluorinated monomers can be employed in 157-nm resists, and resist systems based on polymers of fluorinated olefins and vinyl alcohols have been described (134,135). In general, it appears that incorporation of fluorine compromises the etch resistance of resists when compared with their hydrocarbon analogues (136). 

Goodall, B. L. Barnes, D. A. Benedikt, G M. McIntosh, L. H., Ill Rhodes, L. F. Novel heat-resistant cyclic olefin polymers made using single components nickel and palladium catalysts. Polym. Mater. Sci. Eng. 1997, 76, 56-57. 

Nakano, M. Synthesis of novel crystaUine cyclic olefin polymer catalyzed by highly active nickel complexes. R D Review of Toyota CRDL 2000, 35, 82 Chem. Abstr. 2000,133, 238344. 

Nickel, Plastic, Fused silica, glass Ag, Ni, Al Si, ZnS, Ge, cyclic olefin polymer Miyagi,Matsuura etal. 

S. Yi-Wei, W. You, Y Abe, Y Matsuura, M. Miyagi, S Sato, M TaniwaM, H Uyama, Cyclic olefin polymer-coated silver hollow glass waveguides for the infrared. Applied Optics, vol.37, no.33, pp.7758-62. 1998. 

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