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Poly Polybutadiene

Interpenetrating networks of DMPPO and polymers such as polystyrene, polybutadiene, poly(urethane acrylate), and poly(methyl methacrylate) have been prepared by cross-linking solutions of DMPPO containing bromomethyl groups with ethylenediamine in the presence of the other polymer (68). [Pg.330]

IBI 1,4-Polyisoprene 1,4-Polybutadiene Poly(ethylene-co- propylene Polyethylene Inverse block polymer— properties dependent on composition... [Pg.168]

S-B,.4 Polystyrene 1,4-Polybutadiene Poly(vinyl cyclohexane) Polyethylene Hydrogenation of both blocks... [Pg.169]

The low temperature ene reactions of 4-substituted-l,2,4-triazoline-3,5-diones (RTD) were used to modify polydiene surfaces. Hydrophilic surfaces (contact angles with water of 30-50°) were obtained on polybutadiene, poly-isoprene and styrene-butadiene copolymers by first treating the polymer at room temperature with RTD (R=Ph,... [Pg.219]

Fig. 3. Chain conformation of the disordered (above) and ordered (below) polymorphs of 4-polybutadiene (poly[( )-but-l-ene-l,4-diyl]) in the crystalline state. The heavy black lines designate the double bonds and the symbols S+, S- and C the conformation [17]. Fig. 3. Chain conformation of the disordered (above) and ordered (below) polymorphs of 4-polybutadiene (poly[( )-but-l-ene-l,4-diyl]) in the crystalline state. The heavy black lines designate the double bonds and the symbols S+, S- and C the conformation [17].
SEO BEO EMAEO SCL Polystyrene-poly(ethylene oxyde) Polybutadiene-poly(ethyleneoxyde) Poly(ethyl methacrylate)-poly(ethylene oxyde) Polystyrene-poly( -coprolactone)... [Pg.86]

BG SG SC SL BCK SCK BK SK BE SE Polybutadiene-poly(benzyl-L-glutamate) Polystyrene-poly (benzyl-L-glutamate) Polystyrene-poly(cinnamyl-L-glutamate) Polystyrene-poly(L-leucine) Polybutadiene-poly(carbobenzoxy-L-lysine) Polystyrene-poly(carbobenzoxy-L-lysine) PoIybutadiene-poly(L-lysine) Polystyrene-poly(L-Iysine) Polybutadiene-poly(L-glutamic acid) Polystyrene-poly(L-glutamic acid)... [Pg.86]

Block copolymers polybutadiene-poly(a-methylstyrene)(BMS) with compositions in polybutadiene between 18 and 81% have been synthetized by anionic polymerization in tetrahydrofuran with cumylpotassium as initiator84. ... [Pg.117]

Block Copolymers Polybutadiene-poly(vinyl-2-naphtalene) (BVN)... [Pg.117]

Block copolymers of butadiene and vinyl-2-naphtalene (BVN) have been synthetized and studied by the same techniques as polybutadiene-poly(a-methyl styrene) and polystyrene-polybutadiene block copolymers86,87. They exhibit the same structures, namely lamellar and cylindrical as SB and BMS block copolymers86,87. ... [Pg.117]

Hock Copolymers Polybutadiene-poly styrene-poly butadiene (BSB)... [Pg.117]

Fig. 37. Example of an electron micrograph of copolymers with a polyvinyl block and a polypeptide block. Copolymer polybutadiene-poly(benzyl-L-glutamate) BG.530 containing 33% polypeptide with polydiene chains have been stained with osmium tetroxide... Fig. 37. Example of an electron micrograph of copolymers with a polyvinyl block and a polypeptide block. Copolymer polybutadiene-poly(benzyl-L-glutamate) BG.530 containing 33% polypeptide with polydiene chains have been stained with osmium tetroxide...
The following copolymers have been prepared polybutadiene-poly(benzyl-L-glutamate) (BG), polystyrene-poly(benzyl-L-glutamate) (SG), polystyrene-poly(cinnamyl-L-glutamate) (SC), polystyrene-poly(L-leucine) (SL), polystyrene-poly(carbobenzoxy-L-lysine) (SCK) and polybutadiene-poly(carbobenzoxy-L-lysine) (BCK). [Pg.147]

Copolymers with a hydrophobic polyvinyl block and a hydrophilic polypeptide block like polybutadiene-poly(L-lysine) (BK), polystyrene-poly(L-lysine) (SK),poly-butadiene-poly(L-glutamic acid) (BE), and polystyrene-poly(L-glutamic acid) (SE) are obtained by action of HC1 and HBr on copolymers BCK, SCK, BG, and SG, respectively23. ... [Pg.149]

Three polybutadiene/poly isoprene diblocks were provided to us by Paul Rempp of CRM, Strasbourg. Details of the molecular weights and the expected diene microstructures were discussed earlier (1,13) and are summarized in Table I. Homopolymers of corresponding microstructures and molecular weights (1,13) are also described in Table I. The molecular-weight distributions of the homopolymers are considerably broader than those of the block polymers, owing to a mastication procedure (13) carried out on these samples to lower their molecular weights. To insure that" the microstructures of the homopolymers were well matched to the constituent blocks in the copolymers, 60-MHz NMR spectra were obtained on a Varian T-60 apparatus for the diblocks, the individual homopolymers, and three equivalent homopolymer blends (13). [Pg.239]

Th-FFF can be applied to almost all kinds of synthetic polymers, like polystyrene, polyolefins, polybutadiene, poly(methyl methacrylate), polyisoprene, polysulfone, polycarbonate, nitrocelluloses and even block copolymers [114,194,220]. For some polymers like polyolefins, with a small thermal diffusion coefficient, high temperature Th-FFF has to be applied [221]. Similarly, hydrophilic polymers in water are rarely characterized by Th-FFF, due to the lack of a significant thermal diffusion (exceptions so far poly(ethylene oxide), poly(vi-nyl pyrrolidone) and poly(styrene sulfonate)) [222]. Thus Th-FFF has evolved as a technique for separating synthetic polymers in organic solvents [194]. More recently, both aqueous and non-aqueous particle suspensions, along with mixtures of polymers and particles, have been shown to be separable [215]. [Pg.116]

Polystyiene-polybutadiene Polybutadiene-poly(a-methyl styrene) Polybutadiene-poly(vinyl naphthalene) Polystyrene-polybutadlene-polystyrene Polybutadiene-polystyrene-polybutadiene Polystyrene-polyisoprene Pblystyrene-polyisoprene-polystyrene Polyia>prene-poly(vinyl-2-p dine) PofyiK>prene-poly(vinyl-4-pyridine) Polyisoprene-poly(methyl methacrylate) Polystyrene-poly(butadiene or ia>prene)-polystyrene Star polystyrene-polybutadiene with 4 branches Star polybutadiene-polystyrene with n branches Star polystyrene-polybutadiene with n branches Star polystyrene-polyisoprene with n brandies Polystyrene-polyisoprene-poly(vinyl-2-pyridine) Polystyrene-poly vinyl-2-pyridine) Polystyrene-poly(vinyl-4-pyridine) Poly(vinyl-2-pyridine)-poly(vinyl-4-pyridine)... [Pg.86]

Polystyrene-poly(ethylene oxyde) Polybutadiene-poly(ethyleneoxyde)... [Pg.86]

Fig. 4. Example of electron micrograph of the inverse hexagonal structure. Copolymer polybutadiene-poly (vinyl-2-naphthalene) BVN.11 containing 62% polybutadiene, swollen with 36% MMA, and post-polymerized Main figure section along the plane perpendicular to the direction of the axis of the poly(vinylnaphthalene) cylinders swollen with the solvent insert section by a plane parallel to the axis of the cylinders. Poly butadiene stained by osmium tetroxide in dark... Fig. 4. Example of electron micrograph of the inverse hexagonal structure. Copolymer polybutadiene-poly (vinyl-2-naphthalene) BVN.11 containing 62% polybutadiene, swollen with 36% MMA, and post-polymerized Main figure section along the plane perpendicular to the direction of the axis of the poly(vinylnaphthalene) cylinders swollen with the solvent insert section by a plane parallel to the axis of the cylinders. Poly butadiene stained by osmium tetroxide in dark...
Solution polymerization. Solution polymerization involves polymerization of a monomer in a solvent in which both the monomer (reactant) and polymer (product) are soluble. Monomers are polymerized in a solution that can be homogeneous or heterogeneous. Many free radical polymerizations are conducted in solution. Ionic polymerizations are almost exclusively solution processes along with many Ziegler-Natta polymerizations. Important water-soluble polymers that can be prepared in aqueous solution include poly(acrylic acid), polyacrylamide, poly(vinyl alcohol), and poly(iV-vinylpyrrolidinone). Poly(methyl methacrylate), polystyrene, polybutadiene, poly(vinyl chloride), and poly(vinylidene fluoride) can be polymerized in organic solvents. [Pg.596]

PB PBT polybutadiene poly(butylene terephthalate) UCST upper critical solution temperature... [Pg.573]

See other pages where Poly Polybutadiene is mentioned: [Pg.86]    [Pg.117]    [Pg.126]    [Pg.242]    [Pg.242]    [Pg.242]    [Pg.387]    [Pg.86]    [Pg.86]    [Pg.117]    [Pg.11]    [Pg.389]    [Pg.230]    [Pg.126]    [Pg.126]    [Pg.361]    [Pg.9]    [Pg.370]    [Pg.7]    [Pg.119]    [Pg.137]   
See also in sourсe #XX -- [ Pg.165 ]



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