Polybutadiene copolymer

Siloxane-polybutadiene copolymers 45 Siloxane-polyethylene copolymers 45 Siloxane-polypeptide copolymers 51 Siloxane-silarylenesiloxane copolymers 27, 41... 

Initially, Prof. Segal and members of his research group at the University of Florida evaluated the combustion characteristics of mixtures of isomeric PCU alkene dimers (2a) as solid fuels in compressible flows. Subsequently, these studies were extended to include evaluation of 2a as a solid fuel under conditions of high-shear flow. Samples of the mixture of isomeric PCU alkene dimers were cured with a styrene-polybutadiene copolymer (10% w/w) binder on the test... 

Schwahn, D. Willner, L. Phase Behavior and Flory-Huggins Interaction Parameter of Binary Polybutadiene Copolymer Mixtures with Different Vinyl Content and Molar Volume. Macromolecules 2002,35, 239-247. 

Members of a Japanese group (101, 102), using polybutadiene as their base polymer, were able to metalate the allylic position of the polybutadiene chain. The allylic anion was then allowed to react with additional monomer to produce a grafted polybutadiene copolymer, Eqs. (33) and (34). 

D. N.-S. Hon and L.-M. Xing, Cellulose-Polybutadiene Copolymer Properties and Applications Paper presented at the 200th ACS National Meeting, Cellulose, Paper and Textile Division, Washington, D.C., 1990. (Abstracts CELL-15). 

The study by low-angle X-ray diffraction and electron mia oa py of concentrated solutions of the copolymers in preferential solvents for polybutadiene (iar-in ene, butadiene) or for poly(a-methyl styrene) (styrene, amnethylstyrene, methyl methacrylate, methylethyl ketone) and of copolymers in the dry state obtained by slow evaporation of the solvent from the mesophases have drown the existence of three types of structure hex onal, lamellar, and inverse hex onal depending upon the copolymer composition The factors governing the structural type and the structural parameters are the same as in the case of polystyrene-polybutadiene copolymers ... 

Grinberg, F. A., Skirda, V. A., Maklakov, V. A., Ragovina, L. Z., and Niki-forova, G. G. (1987). Self-diffusion in solutions of polyblock polysulfone-polybutadiene copolymer. Vysokomol. Soedin. Ser. A 29, 2029-2034 (in Russian). 

Petrov, P. Jankova, K. Mateva, R. Polyamide-6-block-polybutadiene copolymers synthesis and properties. J. Appl. Polym. Sci. 2003, 89,111. 

Rubber-like polymers (made of polychloroprene, polybutadiene copolymers, SIS, SBS for adhesive bonding of elastomers and as substitutes for solvent-based adhesives)... 

Various types of polymers are used to formulate propellants and explosives. The nature of polymers is identified by their chemical bond structure. Two types of copolymers are used to formulate modern propellants and explosives (1) polyurethane copolymer and (2) polybutadiene copolymer. The chemical bond structures of polyether and polyester are used for polyurethane copolymers. Since the molecular concentration of oxygen is relatively high for polyurethane binder, this class of binder is used to achieve high combustion efficiency with low oxidizer concentration of crystalline materials. On the other hand, the heat of formation of polybutadiene copolymer is high and the molecular concentration of oxygen is low when compared with polyurethane copolymer. This class of binder is used to achieve a high combustion temperature when mixed with crystalline oxidizer particles. 

Figure Bl.19.29. AFM image of polystyrene/polybutadiene copolymer, showing lamellar structure. (Taken from [140], figure 1.)...

Figure 6.10. Models of different types of core-shell modifiers (a) traditional core/shell (b) IPN core/shell (c) blend of separate core/shell and (d) multilayered core/shell. Possible polymer compositions are polybutadiene copolymer as polymer A, acrylic copolymer as polymer B, and SAN as polymer C.

Other compounds reacting similarly via activated double bonds (excluding here block or graft copolymerization) include maleic acid, A-methyl-maleimide, chloromaleic anhydride, fumaric acid, y-crotonolactone,/7-benzoquinone, and acrylonitrile. Other polymers with unsaturated backbones, such as polybutadiene, copolymers of butadiene with styrene and with acrylonitrile, and butyl rubber, react in similar ways, but the recorded reaction with poly(vinyl chloride) is largely mechanochemical in nature (discussed later). 

Lenhardt JM, Black AL, Craig SL (2009) gem-Dichlorocyclopropanes as abundant and efficient mechanophores in polybutadiene copolymers under mechanical stress. J Am Chem Soc 131 10818-10819... 

S. Tanimoto, K. Ito, S. Sasaki, H. Takeshita, S. Nojima, Crystallization process in binary blends of poly(E-caprolactone)-h/t>cJ -polybutadiene copolymers. Polymer Journal 34 (8)... 

Table 17. Characteristics of PCL-polybutadiene copolymers used in blends with PCL data taken from [161]...

A manufactured fiber in which the fiber-forming substance is a hydrocarbon such as natural rubber, polyisoprene, polybutadiene, copolymers of dienes and hydrocarbons, or amorphous (noncrystalline) polyolefins."... 

Butadiene Polybutadiene, copolymers, chloroprene, adipodinitrile, sulfolene 9 (2009)... 

Samples from many industrial sources are often contaminated at the surface by processing agents or adventitious post-process contaminants. Detection of specific contaminant molecules on surfaces by SSIMS is, of course, an exercise similar to detection of additive molecules migrating to polymer surfaces. However, in case of contaminants the problem is often localised and the microanalytical/imaging capability of SSIMS is called upon. As the primary ion beam can be focused to a very small spot size (a few /xm) even very small defects can be analysed allowing locally resolved chemical surface identification by microanalytical SSIMS. Additive mapping has been used for the identification of contaminations [823]. Lloyd et al. [794] have described identification of a hexamethylene tetra-methyldiamine deposit on interior automotive parts. Another typical example concerns the behaviour of a non-woven PP fibre product with surface contamination by dimethylsilicone (DMS). The distribution of DMS over the 30 /xm PP fibres was mapped [824]. The sensitivity of SSIMS to molecular additives and surface contamination has been illustrated by Weng et al. [825] who identified PDMS (m/z 28, 73, 147, 207, 221, etc.) and palmitic/stearic acids (m/z 239, 257, 267, 285) in polybutadiene copolymers (Fig. 5.25) by means of ToF-SIMS. SSIMS is... 

Figure 6.10 Experimental SAXS peaks obtained from late-stage melting of poly(e-caprolactone)-i)/oc/c-polybutadiene copolymers. The solid line in the figure depicts the best-fit curve which is a sum of two psewdo-Voigt functions represented by the broken curves (in the diagram).

Tanimoto, S., Ito, K., Sasaki, S., Takeshita, H., and Nojima, S. (2002) Crystallization process in binary blends of poly (e-caprolactone)-fclock-polybutadiene copolymers. Polym. J., 34, 593-600. 

An interesting approach to obtaining sulfonated poly(arylene ether sul-fone)s was reported by Zhang et al. [52,125]. They prepared poly(arylene ether sulfone)-fc/ock-polybutadiene copolymers and achieved a selective sul-... 

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