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Polyisoprenes

Figure C2.1.11. Morjrhologies of a microphase-separated di-block copolymer as function of tire volume fraction of one component. The values here refer to a polystyrene-polyisoprene di-block copolymer and ( )pg is tire volume fraction of the polystyrene blocks. OBDD denotes tire ordered bicontinuous double diamond stmcture. (Figure from [78], reprinted by pemrission of Annual Reviews.)... Figure C2.1.11. Morjrhologies of a microphase-separated di-block copolymer as function of tire volume fraction of one component. The values here refer to a polystyrene-polyisoprene di-block copolymer and ( )pg is tire volume fraction of the polystyrene blocks. OBDD denotes tire ordered bicontinuous double diamond stmcture. (Figure from [78], reprinted by pemrission of Annual Reviews.)...
Polymerization of isoprene by 1,4-addition produces polyisoprene that has a cis (or Z) configuration. [Pg.1064]

As examples of natural polymers, we consider polysaccharides, proteins, and nucleic acids. Another important natural polymer, polyisoprene, will be considered in Sec. 1.6. [Pg.16]

Figure 1.3 shows several repeat units of cis-l,4-polyisoprene and trans-1,4-polyisoprene. Natural rubber is the cis isomer of 1,4-polyisoprene, and gutta-percha is the trans isomer. [Pg.28]

Figure 1.3 1,4-polyisoprene with R=CH3 (a) cis isomer natural rubber (b) trans... [Pg.29]

In the two polyisoprene isomers, the length of the repeat unit and the steric hindrance factor vary oppositely for the two isomers. The greater end-to-end distance in the trans isomer is the dominant influence on the order of 1q values. [Pg.62]

Figure 2.15 Log of viscosity enhancement factor versus parameter measuring branch length for polyisoprene, [Data from W. W. Graessley, T. Masuda, J. E. I. Roovers, and N. Hadjichristidis, Afacromo/ecu/ej 9 127 (1976).]... Figure 2.15 Log of viscosity enhancement factor versus parameter measuring branch length for polyisoprene, [Data from W. W. Graessley, T. Masuda, J. E. I. Roovers, and N. Hadjichristidis, Afacromo/ecu/ej 9 127 (1976).]...
The following are approximate (in dyne cm ) versus y datat for three different samples of polyisoprene in tetradecane solutions of approximately the same concentration ... [Pg.127]

Our time has seen The synthesis of polyisoprene And many cross-linked helixes unknown To Robert Hooke but each primoridal bean Knew cellulose by heart. . . ... [Pg.133]

Natural rubber, cis-1,4-polyisoprene, cross-linked with sulfur. This reaction was discovered by Goodyear in 1839, making it both historically and commercially the most important process of this type. This reaction in particular and crosslinking in general are also called vulcanization. [Pg.137]

Figure 3.12 Log-log plots of compliance versus time for polystyrene at 100 C and cis-polyisoprene at -30°C. (Data of D. J. Plazek and V. M. O Rourke and of N. Nemoto, M. Moriwaki, H. Odani, and M. Kurata from Ref. 4.)... Figure 3.12 Log-log plots of compliance versus time for polystyrene at 100 C and cis-polyisoprene at -30°C. (Data of D. J. Plazek and V. M. O Rourke and of N. Nemoto, M. Moriwaki, H. Odani, and M. Kurata from Ref. 4.)...
A diblock copolymer, 71% polyisoprene (1) by weight and 29% polybutadiene (B), was blended in different proportions into a 71%-29% mixture of the individual homopolymers. The loss tangent was measured as a function of temperature for various proportions of copolymer. Two peaks are observed ... [Pg.183]

Increasing the copolymer content of the system lowers the Tg of both peaks, but the effect is far more pronounced for the peak associated with I. The latter is essentially constant in height, while the B peak diminishes in height with increasing copolymer. This suggests that the copolymer dissolves preferentially in the polyisoprene. [Pg.184]

The following data were obtained on the same system described in Example 3.6. This time the copolymer (C) concentration is fixed at 25% by weight and the proportions of poly butadiene (B) and polyisoprene (I) are varied ... [Pg.196]

NBRin pLASTOMERS, SYNTHETIC - NITRILE RUBBER] (Vol 8) -cis-l,4-polyisoprene in pLASTOMERS SYNTHETIC - POLYISOPRENE] (Vol 9)... [Pg.419]


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1,4-Polyisoprene crystallization

1,4-Polyisoprene degradation

1,4-Polyisoprene derivatives

1,4-Polyisoprenes, synthesis

1,4-frans-Polyisoprene

1,4-polyisoprene-polyacetylene copolymers

1.4- cw-polyisoprene

3,4-Polyisoprene catalysts

Arborescent Polyisoprene

Autohesion of Polyisoprene

Block polystyrene/polyisoprene

Bromination polyisoprenes

C/s-Polyisoprene

Carbon black-loaded polyisoprene

Cellulose 1,4-polyisoprene

Center blocks, polyisoprene

Chlorinated polyisoprene

Cis- Polyisoprene structure

Cis-1,4-Polyisoprene

Cis-1,4-Polyisoprene with benzophenone

Cis-l,4-Polyisoprene

Coordination polymerization trans-1,4-polyisoprene

Cross-linked polymers vulcanized polyisoprene

Cw-l,4-polyisoprene

Cyclised polyisoprene

Cyclization of polyisoprene

Cyclized polyisoprene-based resists

Cz-polyisoprene

Czs-l,4-polyisoprene

Czs-polyisoprene

Degradation of polyisoprene

Diene polymers Polybutadiene, Polyisoprene

Diene rubbers synthetic polyisoprene

Difunctional polyisoprene

ELASTOMERS, SYNTHETIC) - POLYISOPRENE

Epoxidized polyisoprene

Epoxidized polyisoprene-acrylate

Epoxidized polyisoprene-vinyl ether

Fluorinated polyisoprene

Frans-l,4-Polyisoprene

Gutta percha Trans-1,4-polyisoprene)

Homopolymers polyisoprene

Hydrochlorinated 1,4-polyisoprene

Hydrogenated 1,4-polyisoprene spectrum

Hydrogenated polyisoprene

Hydrogenated polyisoprene blocks

Hydrohalogenated 1,4-polyisoprene

Hydrohalogenated 1,4-polyisoprenes

Introduction of Perfluoroalkyl Groups via Polystyrene-Block-Polyisoprene

Isomerization polyisoprenes

Isomers polyisoprene

Isoprene Polyisoprene, Rubber, natural

Isoprene polyisoprene

Isoprene polymers 3,4-polyisoprene

Isoprene polymers trans-1,4-polyisoprene

Local segmental dynamics polyisoprene

Methyl carbon polyisoprenes

Microstructur polyisoprene

Microstructure of polyisoprenes

Molecular structure polyisoprene

Molecular weight polyisoprene

NMR Imaging of Swollen BR and Polyisoprene Rubbers

Nanocomposites Based on Hydroxylated Polyisoprene

Natural Rubber (NR) and Synthetic Polyisoprene

Natural polyisoprene

Natural polyisoprene vulcanization

Natural polyisoprenes

Natural rubber (cis-1,4-polyisoprene

Natural rubber or polyisoprene

Natural rubber polyisopren

Naturally occurring polyisoprenes

Networks, polyisoprene

Nuclear magnetic resonance polyisoprene

Oxidation of polyisoprene

Peroxide-curing polyisoprene

PolyIsoprene, description

Polybutadiene polyisoprene

Polychloroprene, polyisoprene

Polyisoprene

Polyisoprene

Polyisoprene /PDMS

Polyisoprene Anionic polymerization

Polyisoprene Asymmetric stars

Polyisoprene Branching

Polyisoprene Damping function

Polyisoprene Hydrogenation

Polyisoprene IR spectra

Polyisoprene Linear viscoelastic behavior

Polyisoprene Sequences

Polyisoprene Unsaturation

Polyisoprene blends

Polyisoprene blocks

Polyisoprene chain

Polyisoprene chemical shifts

Polyisoprene crosslink density

Polyisoprene crosslinking

Polyisoprene cyclisation

Polyisoprene cyclization

Polyisoprene cyclohexane

Polyisoprene dielectric loss

Polyisoprene dielectric relaxation

Polyisoprene different polymerization methods

Polyisoprene elastomer

Polyisoprene energy

Polyisoprene epoxidation

Polyisoprene formation

Polyisoprene halogenation

Polyisoprene initiated with alkyllithium

Polyisoprene lithium

Polyisoprene microstructure

Polyisoprene model compound

Polyisoprene modifier

Polyisoprene molecular weight variation

Polyisoprene natural and synthetic rubber

Polyisoprene naturally occurring

Polyisoprene networks, uniform

Polyisoprene oxidation

Polyisoprene peroxide cross-linked

Polyisoprene photodegradation

Polyisoprene polymer microstructure

Polyisoprene polymerisation

Polyisoprene polymerization

Polyisoprene process

Polyisoprene production

Polyisoprene properties

Polyisoprene pyrolysis

Polyisoprene radiolysis

Polyisoprene repeating unit

Polyisoprene rubber

Polyisoprene rubber/plastic

Polyisoprene sedimentation

Polyisoprene self-diffusion

Polyisoprene singlet oxygen

Polyisoprene solubility

Polyisoprene spectrum

Polyisoprene spherulites

Polyisoprene star polymers

Polyisoprene star-branched

Polyisoprene stereoisomerism

Polyisoprene structure

Polyisoprene sulfur vulcanisation

Polyisoprene swollen

Polyisoprene synthesis

Polyisoprene tactic forms

Polyisoprene tacticity

Polyisoprene telechelic

Polyisoprene using free radical catalyst

Polyisoprene viscosity

Polyisoprene water swelling

Polyisoprene, PIP

Polyisoprene, block copolymer hydrogenation

Polyisoprene, block copolymers

Polyisoprene, catalytic hydrogenation

Polyisoprene, cyclized

Polyisoprene, diffusion

Polyisoprene, grafting

Polyisoprene, grafting polystyrene branches

Polyisoprene, halogenated

Polyisoprene, high molecular weight

Polyisoprene, hydroxylated

Polyisoprene, living polymer

Polyisoprene, natural degradable

Polyisoprene, natural degradable polymers

Polyisoprene-Wock-polystyrene

Polyisoprene-polystyrene copolymers

Polyisoprenes crystallization

Polyisoprenes cyclization

Polyisoprenes development

Polyisoprenes isomerism

Polyisoprenes latex

Polyisoprenes mechanical properties

Polyisoprenes preparation

Polyisoprenes properties

Polyisoprenes rubber

Polyisoprenes spectra

Polyisoprenes stereoregular

Polyisoprenes, relaxation parameters

Polyisoprene—Natural Rubber

Polyisoprene—polybutadiene blends

Polyisoprene—polybutadiene blends properties

Polyisoprene—polybutadiene star-block

Polymer blends with polyisoprene

Polymer hydrogenous polyisoprene

Polymer polyisoprene

Polyolefins polyisoprene

Polystyrene polyisoprene and

Polystyrene-/?-polyisoprene

Polystyrene-b-polyisoprene

Polystyrene-fc-polyisoprene

Polystyrene-polyisoprene diblock

Polystyrene-polyisoprene diblock copolymers

Preparation of 3,4-Polyisoprene

Pyrolysis of polyisoprene

Randomly cross-linked polyisoprene

Resonance polyisoprenes

Ring opening polymerization polyisoprene

Rubber cis-1 ,4-Polyisoprene

Rubbers synthetic polyisoprene

Saturated 3,4-polyisoprene

Sequences in Polyisoprene

Silicone synthetic polyisoprene

Small-angle neutron scattering polyisoprene

Structural Characterization of Naturally Occurring cis-Polyisoprenes

Structure of Naturally Occurring Cis-Polyisoprenes

Synthetic Polyisoprenes

Synthetic Polyisoprenes and a Process for Their Preparation

Synthetic polyisoprene

Synthetic polyisoprene (IR)

Synthetic polyisoprene Natural rubber

Synthetic polyisoprene rubbers Mooney viscosity

Synthetic polyisoprene rubbers activators

Synthetic polyisoprene rubbers adhesion

Synthetic polyisoprene rubbers applications

Synthetic polyisoprene rubbers characteristics

Synthetic polyisoprene rubbers comparison with natural rubber

Synthetic polyisoprene rubbers compounding

Synthetic polyisoprene rubbers creep

Synthetic polyisoprene rubbers development

Synthetic polyisoprene rubbers green strength

Synthetic polyisoprene rubbers mixing

Synthetic polyisoprene rubbers modified

Synthetic polyisoprene rubbers pharmaceutical applications

Synthetic polyisoprene rubbers physical properties

Synthetic polyisoprene rubbers polymer

Synthetic polyisoprene rubbers storage

Synthetic polyisoprene rubbers structure

Synthetic polyisoprene rubbers tyres

Synthetic polyisoprene rubbers vulcanisation

Telechelic polyisoprenes

Terpenes polyisoprenes

Terpenes, acyclic polyisoprenes

Trans- 1,4-Polyisoprene

Trans-1,4-polyisoprene rubber

Trans-l,4-Polyisoprene

Trans-polyisoprene crosslinking

Trans-polyisoprene crystallization

TransA ,4-Polyisoprene

Ziegler-Natta catalysts polyisoprene polymerization

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