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Polymer transition

The use of rubbers (low glass transition polymers) to toughen acrylic adhesives... [Pg.830]

Kahn and Martinez (1998) Spin transition polymers from molecular materials toward memory devices [17]. [Pg.51]

AS the solvent in a polymer solution becomes poorer, e.g., through a temperature change, a phase transition will eventually take place. There have been a number of reports on the phase transition polymers in response to various external stimuli such as pH [1-5], temperature [6-10], light [11-14], and chemical substances [15-20], These polymer systems have been model systems for understanding the fundamental and classic problems in polymer physics. [Pg.50]

With the advance of pharmaceutical science, it has been recognized that constant release is not the only way to maximize drug effectiveness and minimize side effects and that the assumptions used for constant release rate sometimes fail due to physiological conditions. From this perspective, zero-order dmg release is not acceptable in all cases and externally modulated or self-regulating dmg delivery systems have been developed as novel approaches to deliver dmgs as required. To realize such dmg delivery systems, it is important to constmct a system where the dmg itself senses environmental stimuli and responds appropriately to control the dmg release. For this purpose, the phase transition polymers have been intensively exploited as a candidate material during last decade [21]. [Pg.50]

Cocrystallization in copolymers of a-olefins. II — Butene-1 copolymers and polybutene type II—I crystal phase transition. Polymer 7, 23 (1965). [Pg.572]

Moreover, introduction of additional silane with chiral/achiral side groups to the 16-based copolymers permits fine control of the transition temperature (Tc) between -64 and +79°C. These results may open new methodologies in designing PM-transition polymers that may be promising in diverse screw-sense related applications, such as thermo-driven chiroptical switch and memory, a thermo-driven switching chiral separation column, and molecular recognition ability. [Pg.146]

Block copolymer vesicles, or polymersomes, are of continued interest for their ability to encapsulate aqueous compartments within relatively robust polymer bilayer shells (Fig. 7) [66, 67]. Eisenberg and coworkers were the first to report the formation of block copolymer vesicles from the self-assembly of polystyrene-h-poly(acrylic acid) (PS-h-PAA) block copolymers. They also have described the formation of a wide range of vesicle architectures in solution from the self-assembly of five different block copolymers PS-h-PAA. PS-h-PMMA, PB-h-PAA, polystyrene-h-poly(4-vinyIpyridinium methyl iodide), and polystyrene-h-(4-vinylpyridinium decyl iodide) [68]. Small uniform vesicles, large polydisperse vesicles, entrapped vesicles, hollow concentric vesicles, onions, and vesicles with hollow tubes in the walls have been observed and the formation mechanism discussed. Since vesicles could be prepared with low glass transition polymers such as PB [69, 70] and PPO [71], it has been established than these structures are thermodynamically stable and not trapped by the glassy nature of the hydrophobic part. [Pg.175]

Bubnis, W.A. Ofner, C.M., III. The determination of 8-amino group in soluble and poorly soluble proteinaceous materials by a spectrophotometric method using trinitro-benzenesulfonic acid. Anal. Biochem. 1992, 207, 129-133. Liu, W.G. Yao, K.D. Wang, G.C. Li, H.X. Intrinsic fluorescence investigation on the change in conformation of cross-linked gelatin gel during volume phase transition. Polymer 2000, 41, 7589-7592. [Pg.1874]

The first extrapolation by a square root of concentration in Zr seems to be incorrect, because the ionic strength in these solutions is not affected by the concentration of Zr but by that of the background electrolyte. At constant ionic strength, the dissolution enthalpy should be independent of the Zr concentration. The observed concentration dependeney may indicate a change in solution speciation, hence polymer formation may have occurred. The inclusion of the data of the authors in the overall assessment of Zr hydrolysis requires a re-interpretation of their experimental data in terms of mono-mer/polymer transition. Polymer formation in similar solutions was analysed by [75TRI/SCH]. A re-interpretation was found to be important in similar solutions [75TRI/SCH] (see Appendix A entry) aceording to the reaction ... [Pg.314]

Obaidat and Park (84,85) prepared sol-gel transition polymers responsive to glucose. They prepared a water-soluble copolymer of acrylamide and allyl glucose. The resulting... [Pg.300]

Dynamic mechanical analysis DMA Moduli Phase changes, glass transitions, polymer cure... [Pg.5]

Polymer Phase transitions Polymer Phase transitions... [Pg.214]

SchneU, M., and Wolf, B., Excess viscosity and glass transition, Polymer, 42, 8599-8605... [Pg.520]

Wool, R. P, Twinkling fractal theory of the glass transition, /. Polym. Sci. B, 46, 2765-2778... [Pg.604]

Lin J, Zhu G, Zhu X, Lin S, Nose T, Ding W (2008) Aggregate structure change induced by intramolecular helix-coil transition. Polymer 49 1132-1136... [Pg.196]

Flexman, E. A. Jr. (1979) Impact behavior of Nylon-66 compositions ductile-brittle transitions, Polymer Eng. Sci., 19, 564-571. [Pg.498]

While simple homopolymers and random copolymers exhibit single, sharp glass transitions, polymer blends in general, and IPN s in particular, show two such transitions, one for each phase. The intensity of each transition is clearly related to the overall composition and phase continuity, while shifts and broadening of the transition indicate the extent of molecular mixing. In contrast, electron microscopy (previous section) shows phase size... [Pg.246]

No. Abbreviation of Polymer Monomer Transitions, Polymer X-ray Data Ref. [Pg.4]

Keller, A. and S.Z.D. Cheng. 1998. The role of metastability in polymer phase transitions. Polymer 39 4461. [Pg.741]

Figure 8.5 Distribution of light-scattering relaxation times for poly(hexyl methacrylate) near its glass-transition range. At the lowest temperature, the primary and secondary relaxations are separating. The long-time part of the gamma relaxation is visible in the short time window of the technique. (From Savin, D.A., Patterson, G.D., and Stevens, J.R., Evidence for the y-relaxation in the light scattering spectra of poly(n-hexyl methacrylate) near the glass transition, /. Polym. Sci. B Polym. Phys., 43, 1504, 2005. With permission.)... Figure 8.5 Distribution of light-scattering relaxation times for poly(hexyl methacrylate) near its glass-transition range. At the lowest temperature, the primary and secondary relaxations are separating. The long-time part of the gamma relaxation is visible in the short time window of the technique. (From Savin, D.A., Patterson, G.D., and Stevens, J.R., Evidence for the y-relaxation in the light scattering spectra of poly(n-hexyl methacrylate) near the glass transition, /. Polym. Sci. B Polym. Phys., 43, 1504, 2005. With permission.)...

See other pages where Polymer transition is mentioned: [Pg.442]    [Pg.525]    [Pg.232]    [Pg.233]    [Pg.274]    [Pg.5]    [Pg.374]    [Pg.159]    [Pg.147]    [Pg.46]    [Pg.312]    [Pg.110]    [Pg.355]    [Pg.153]    [Pg.138]    [Pg.445]    [Pg.800]    [Pg.110]    [Pg.55]    [Pg.323]    [Pg.332]   
See also in sourсe #XX -- [ Pg.105 ]




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Acrylic core-shell polymers, glass-transition

Acrylic core-shell polymers, glass-transition temperature

Activation energy polymer transitions

Addition polymers transition metal catalysis

Adhesion and Surface Glass Transition of Amorphous Polymers

Amorphous polymers glass transition

Amorphous polymers glass transition temperature

Amorphous polymers relaxation transitions

Amorphous polymers secondary transitions

Amorphous polymers viscoelastic transitions

Appendix Transition Maps of Representative Polymers

Arene-transition metal polymers

Arene-transition metal polymers complexes

Aromatic polymers, transition metal

Atactic polymers, glass transition temperatures

Blended polymers glass transition temperature

Carbohydrate polymers, glass transition

Carbohydrate polymers, glass transition temperature

Carbonyl complexes transition-metal polymers

Catalysts, transition-metal, polymer-supported

Coil-Globule Type Transition and IMM of Polymers

Complexity of Polymer Phase Transitions

Compressibility, transition region polymer glasses

Copolymerization, glass transition polymers

Crystalline polymers glass transition temperature

Crystalline polymers relaxation transitions

Crystalline polymers secondary transitions

Decoherence theory polymer conformational stability, transitions

Dependence of N-I transition on polymer chain length

Determination of polymer transitions and investigations into molecular structure

Differential scanning calorimetry polymer transition behavior

Dipole transitions, conjugated polymers

Discontinuous Transition in Semiflexible Polymers

Electric fields transition, polymer solution

Epoxy polymers glass transition temperatures

Factors Affecting the Glass Transition of Polymers

Factors affecting the glass transition in amorphous polymers

First-order transitions crystalline polymers

First-order transitions polymer thermodynamics

Free volume theory, glass transition polymers

Frontiers in Transition Metal-Containing Polymers, edited by Alaa S. Abd-El-Aziz and Ian Manners

Gibbs free energy equation, glass transition polymers

Gibbs-DiMarzio theory, glass transition polymers

Glass Transition Temperature for Selected Polymers

Glass Transition in Polymer Melts

Glass Transition of Polymer Blends

Glass Transitions in Ionic Polymers

Glass transition cross-linked polymers

Glass transition data polymers

Glass transition dependence upon polymer structure

Glass transition effect amorphous polymer

Glass transition in amorphous polymers

Glass transition in polymers

Glass transition of a polymer

Glass transition of amorphous polymers

Glass transition of polymers

Glass transition point amorphous polymers

Glass transition polymer structure

Glass transition polymers

Glass transition semi-crystalline polymers

Glass transition temperature factors that affect, polymers

Glass transition temperature ferroelectric polymers

Glass transition temperature glassy polymers, thermal analysis

Glass transition temperature natural polymers

Glass transition temperature polymer brushes

Glass transition temperature polymer lattices

Glass transition temperature polymer structure effect

Glass transition temperature thermotropic liquid crystal polymer

Glass transition temperature thin polymer films

Glass transition temperature vinyl polymers

Glass transition temperature, glassy and rubbery polymers

Glass transition temperature, in polymers

Glass transition temperature, of polymer

Glass transition temperature, phase polymers

Glass transition temperature, polymer

Glass transition temperature, polymer packaging materials

Glass transition temperatures hyperbranched polymer structure

Glass transition temperatures metallocene polymers

Glass transition temperatures, poly -liquid-crystalline polymer

Glass transition theory Glassy amorphous polymer

Glass transition, polymer film

Glass transition, polymer-monomer

Glass-transition temperature bulk polymer motions below

Glassy polymers glass transition

High Performance Polymers glass transition temperatures

High glass transition temperature polymers

High glass transition temperature polymers development

Ian, Ring-Opening Polymerization of Metallocenophanes A New Route to Transition Metal-Based Polymers

Interpenetrating polymer network Glass transition

Interpenetrating polymer network Glass transition temperatures

Isobaric glass transitions, polymers

Isochoric glass transitions, polymers

Isotactic polymers, glass transition

Isotactic polymers, glass transition temperatures

Ketone polymers glass transition temperature effects

Layered polymers, glass transition

Layered polymers, glass transition temperatures

Linear polymers glass transition temperature

Linear transition metal coordination polymers

Liquid crystalline polymers relaxation transitions

Liquid-crystalline polymers nematic-isotropic transition

Liquid-solid transitions of elastic flexible polymers

Liquid-solid transitions of elastic polymers

Major Polymer Transitions

Measurement of Polymer Transitions

Melting-transition temperature polymer heat capacity

Melting-transition temperature polymer thermodynamics, first-order

Methods of Measuring Transitions in Polymers

Multicomponent polymer materials glass transition

Network polymers glass transition point

Order-disorder transitions polymers

Orientation stability polymer glass transition temperature

Phase Transition in Polymers

Phase Transitions in Amorphous and Crystalline Polymers

Phase Transitions in Suspensions of Rod-Like Colloids Plus Polymers

Phase transition phenomena in polymers

Phase transition temperatures added polymers

Phase transition temperatures polymers

Phase transition, high polymer fluids

Phase transitions polymers, glass to crystal

Phase transitions, mesoscopic polymer

Phase transition—molecular weight polymers

Plasticized polymers glass transition temperature

Polymer , transition metal

Polymer , transition metal complexes

Polymer blends glass transition

Polymer blends glass transition temperatures

Polymer chains, determination transition temperature

Polymer characterization, glass transition

Polymer conformational stability, transitions

Polymer conformational transition

Polymer double glass transition

Polymer glass transition point

Polymer glass transition temperature consolidation

Polymer liquid crystalline phase transition

Polymer melt transition temperature

Polymer networks transitions

Polymer phase transitions

Polymer science glass transition temperature

Polymer secondary transition

Polymer solutions coil-globule transition

Polymer supported transition metal

Polymer supported transition metal complexes

Polymer synthesis glass transition temperatures

Polymer transition from monomer

Polymer transition metal chalcogenides

Polymer, thermal property glass transition temperature

Polymer, thermal property phase transition

Polymer-plasticizer blends, glass transition

Polymer-supported reagents transition metal catalysts

Polymeric ligands, transition metal polymer complexes

Polymers backbone transition metals

Polymers containing transition elements

Polymers glass transition temperatur

Polymers solvation collapse transition

Polymers thermal transitions

Polymers transition maps

Polymers transition metal-catalyzed dehydrocoupling

Polymers transition temperatures

Polymers via Late Transition Metal Catalysis

Polymers, halogenated transition metal reaction

Polymers, inorganic thermal transitions

Polymers, ionic glass transition

Polymers, liquid crystalline glass transition temperature

Polymers, organometallic transition metal containing

Polymorphic transitions in crystalline polymers

Polysilane polymers glass transition temperatures

Relationship between glass transition temperature and melting point of polymers

Relaxation Activation Energy of Polymers in the Glass Transition Region

Relaxation transitions in crystalline polymers

Responsive polymer phase transitions, binding

Rheological analysis, polymers glass transition temperatures

Rigid-rod transition metal-acetylide polymers

Semicrystalline polymers first-order transitions

Semicrystalline polymers glass transition

Semicrystalline polymers glass transition temperature

Semicrystalline polymers secondary transitions

Semicrystalline polymers transitions

Shape-memory polymers thermal phase transition

Siloxane-type polymers glass transition temperature

Solid-State Transitions in Amorphous Polymers

Solubility parameter, glass transition polymers

Soluble polymers with high glass transition temperatures from

Structural transitions of semiflexible polymers with different bending rigidities

Surfaces of polymer blends and wetting transitions

Syndiotactic polymers, glass transition

Syndiotactic polymers, glass transition temperatures

Tacticity, vinyl polymers, glass transition

The Transition Zone in Polymers of Low Molecular Weight

The glass transition in amorphous polymers

Thermal transitions in polymers

Thermo-responsive polymers transition

Thermotropic polymer phase transitions

Transformation of Transition Metal Compounds in Reactions with Polymers

Transition Metal Dimer Complexes in Reactions with Polymers

Transition combined polymers

Transition elements polymers

Transition metal catalysts ferrocene polymers

Transition metal catalysts polymer supported, stability

Transition metal catalysts soluble Inorganic polymers

Transition metal complexes, polymers containing

Transition metal-containing polymers synthesis

Transition metal-containing polymers types

Transition metals conductive polymers

Transition metals polymers based

Transition metals-containing polymers

Transition properties polymer thermodynamics

Transition reactions using polymer-supporte

Transition state imprinted polymer

Transition to adsorbing polymers and two adsorption cases

Transition zone of polymer melts

Transition, in glassy polymers

Transitions and Relaxation in Polymers

Transitions in Pure Polymers

Transitions in thermotropic liquid crystal polymers

Ultrathin polymer films, glass transition effects

Ultrathin polymer films, glass transitions

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