Results 241 to 250 of about 911,076 (286)

Upper critical solution temperature lubricants for CPVC

Journal of Vinyl Technology, 1993
Abstract Chlorinated polyvinyl chloride (CPVC) is often used in injection molding for products that demand high heat resistance. However, proper control of its flow properties is difficult. To improve flow behavior some internal lubricants are usually used, but they reduce heat resistance of the products.
H. Nakamura, T. Fukuoka, T. Uesaka
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Lower and upper critical solution temperatures of binary polymeric solutions

Fluid Phase Equilibria, 2016
Abstract The phase behavior of binary polymeric solutions such as lower and upper critical solution temperatures has an important role in many polymeric processes. For theoretical investigation on the prediction of these temperatures, a substantial number of data points on binary polymeric solutions were collected from literature and used to present ...
Ayoub Ejraei, Samira Shirvani, Mohammad Ali Aroon, Milad Asgarpour Khansary, Sepideh Khalaj   +4 more
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Synthesis and Properties of Upper Critical Solution Temperature Responsive Nanogels

Langmuir, 2019
A random copolymer ((U/A10)165) bearing pendent ureido groups and a small amount (10 mol %) of primary amino groups exhibits an upper critical solution temperature (UCST). We prepared a diblock copolymer (PMPC20P(U/A10)165) composed of water-soluble poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) and (U/A10)165 blocks via reversible addition ...
Maho Ohshio, Kazuhiko Ishihara, Atsushi Maruyama, Naohiko Shimada, Shin-ichi Yusa   +4 more
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Antitumor Drug Delivery Modulated by A Polymeric Micelle with an Upper Critical Solution Temperature

Angewandte Chemie - International Edition, 2015
AbstractThermally sensitive polymeric nanocarriers were developed to optimize the release profile of encapsulated compounds to improve treatment efficiency. However, when referring to thermally sensitive polymeric nanocarriers, this usually means systems fabricated from lower critical solution temperature (LCST) polymers, which have been intensively ...
Fuqiang Hu, Yong-Zhong Du
exaly   +3 more sources

Upper critical solution temperatures in blends of chlorinated polyethylenes

Macromolecules, 1985
La temperature critique est plus faible lorsque la difference des teneurs en chlore dans le melange diminue, ce qui indique une meilleure ...
Hiroyoshi Ueda, Frank E. Karasz
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Aqueous Synthesis of Upper Critical Solution Temperature and Lower Critical Solution Temperature Copolymers through Combination of Hydrogen‐Donors and Hydrogen‐Acceptors

Macromolecular Rapid Communications, 2021
AbstractThe synthesis of thermo‐responsive polymers from non‐responsive and water‐soluble monomers has great practical advantages but significant challenges. Herein, the authors report a novel aqueous copolymerization strategy to prepare polymers with tunable upper critical solution temperature (UCST) or lower critical solution temperature (LCST) from ...
Jianlei Lu, Mengdi Xu, Yi Lei, Lihao Gong, Chuanzhuang Zhao   +4 more
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Upper critical solution temperatures of hydrocarbon + fluorocarbon mixtures

Australian Journal of Chemistry, 1978
Values of the interaction parameter ? have been calculated from upper critical solution temperature data by use of the van der Waals one- fluid model for a range of hydrocarbon+fluorocarbon mixtures. The values obtained are compared with values calculated from gas-liquid critical temperatures and mixed second virial coefficients where experimental data
CP Hicks, RL Hurle, LS Toczylkin, CL Young   +3 more
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Upper and lower critical solution temperatures in 1‐octanol solutions of polyethylene

British Polymer Journal, 1983
AbstractCloud points of 1‐octanol solutions of four linear polyethylene samples having different molecular weights were measured visually in both regions of the upper and lower critical solution temperatures (UCST and LCST). From the (temperature, polymer weight fraction) phase diagrams drawn, the UCST and LCST were determined.
Yoichiro Muraoka, Hiroshi Inagaki, Hidematsu Suzuki   +2 more
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Upper and lower critical solution temperatures in poly (ethylene glycol) solutions

Polymer, 1976
Upper and lower critical solution temperatures have been determined for solutions of poly(ethylene glycol) in t-butyl acetate and water over the molecular weight range of Mη = 2.18 × 103 to ∼1020 × 103. The phase diagram for solutions of poly(ethylene glycol) (Mη = 719 × 103) in t-butyl acetate was expressed as the ‘hour glass’ type, while the phase ...
Susumu Saeki, Nobuhiro Kuwahara, Mitsuo Nakata, Motozo Kaneko   +3 more
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Polystyrene in cyclopentane: Dilute solution properties from the upper critical to the lower critical solution temperature

Journal of Polymer Science Part B: Polymer Physics, 1987
AbstractDilute solutions of polystyrene in cyclopentane are studied with four narrow‐distribution polymer fractions ranging in molecular weight from 1.6 × 105 to 1.8 × 106. Light scattering (total intensity) and viscosity measurements cover a temperature range spanning both “theta” temperatures: the limiting upper critical solution temperature (19.6°C)
Guy C. Berry, Edward F. Casassa, Pi‐Yao Liu   +2 more
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