Results 161 to 170 of about 37,459 (200)

Transport properties of water in hydroxypropyl methylcellulose

European Polymer Journal, 2009
The relation between the self-diffusion coefficient, D-self, of water and the free volume hole size, V-h, has been investigated in a hydroxypropyl methylcellulose (HPMC)-water system in the water content range 0.08-0.36 w/w, at room temperature. Furthermore, the thermal properties of the water in the HPMC-water system, as measured with differential ...
Charlotte Trotzig, Susanna Abrahmsén-Alami, Frans H.J. Maurer   +2 more
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Characterization of Impurities Formed by Interaction of Duloxetine HCl with Enteric Polymers Hydroxypropyl Methylcellulose Acetate Succinate and Hydroxypropyl Methylcellulose Phthalate

Journal of Pharmaceutical Sciences, 1998
Duloxetine hydrochloride ((S)-N-methyl-3-(1-naphthalenyloxy)-2-thiophenepropanamine hydrochloride) has been found to react with polymer degradation products or residual free acids present in the enteric polymers hydroxypropyl methylcellulose acetate succinate (HPMCAS) and hydroxypropyl methylcellulose phthalate (HPMCP) in dosage formulations to form ...
P J, Jansen, P L, Oren, C A, Kemp, S R, Maple, S W, Baertschi   +4 more
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Preparation of 2% hydroxypropyl methylcellulose for viscous surgery

American Intra-Ocular Implant Society Journal, 1985
Since 1976 I have used a solution of hydroxypropyl methylcellulose to prevent corneal endothelial damage during intraocular lens implantation. The substance is inexpensive, readily available, and can be easily dissolved. This paper describes preparation of a 2% solution.
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Relationship between morphologies and mechanical properties of hydroxypropyl methylcellulose/hydroxypropyl starch blends

Carbohydrate Polymers, 2016
Edible films from the blending hydroxypropyl methylcellulose (HPMC) with hydroxypropyl starch (HPS) have been developed. This work focuses on the relationship between morphologies and mechanical properties of such systems. To aid understanding of blend morphology, a new technique used to identify the two phases through dying of the HPS by iodine has ...
Yanfei Wang, Liang Zhang, Hongsheng Liu, Long Yu, George P. Simon, Nuozi Zhang, Ling Chen   +6 more
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POTASSIUM SORBATE PERMEABILITY of POLYSACCHARIDE FILMS: CHITOSAN, METHYLCELLULOSE and HYDROXYPROPYL METHYLCELLULOSE

Journal of Food Process Engineering, 1990
ABSTRACTEdible coatings controlling preservative migration from surface to food bulk could control surface microbial growth which is often the main cause of spoilage for many food products. In this paper we examine the potassium sorbate permeability behavior of chitosan, methyl cellulose and hydroxypropyl methyl cellulose based films.
FAKHRIEH VOJDANI, J. ANTONIO TORRES
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Safety assessment of hydroxypropyl methylcellulose as a food ingredient

Food and Chemical Toxicology, 2007
Hydroxypropyl methyl cellulose (HPMC; CAS No. 9004-65-3) is an odorless and tasteless, white to slightly off-white, fibrous or granular, free-flowing powder that is a synthetic modification of the natural polymer, cellulose. It is used in the food industry as a multipurpose food ingredient.
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Comparison of Carboxymethylcellulose vs. Hydroxypropyl Methylcellulose as a Gonioscopic Fluid

Optometry and Vision Science, 1996
ABSTRACT Background. Hydroxypropyl methylcellulose (HPMC), a popular gonioscopic solution, can cause discomfort and blurred vision. These side effects have been attributed to the preservative benzalkonium chloride (BAK). Carboxymethylcellulose (CMC), an unpreserved, viscous solution, might well provide adequate patient comfort and ...
T P, Nguyen, J H, Nishimoto, C Y, Nakamura, P N, De Land   +3 more
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Influence of Substitution Pattern on Solution Behavior of Hydroxypropyl Methylcellulose

Biomacromolecules, 2009
Industrially produced hydroxypropyl methylcellulose (HPMC) is a chemically heterogeneous material, and it is thus difficult to predict parameters related to function on the basis of the polymer's average chemical values. In this study, the solution behavior of seven HPMC batches was correlated to the molecular weight, degree of substitution, and ...
Anna, Viridén, Bengt, Wittgren, Thomas, Andersson, Susanna, Abrahmsén-Alami, Anette, Larsson   +4 more
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Structural interpretation of the interfacial properties of aqueous solutions of methylcellulose and hydroxypropyl methylcellulose

Polymer, 1984
Abstract Interfacial properties of aqueous solutions of methyl and hydroxypropyl methyl ethers of cellulose are important in foam and emulsion stability, detergency and many other applications involving surface activity of these cellulose ethers. Interfacial tensions of aqueous solutions of these cellulose ethers are measured using a spinning drop ...
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Fabrication and physicomechanical performance of casein-hydroxypropyl methylcellulose nanofibers

Journal of Colloid and Interface Science
Nanofibers were electrospun (20 kV, 6 mL/h, 10 cm, 8 h) from a phase-separated mixture of hydroxypropyl methylcellulose (HPMC) and molecularly dispersed casein. Associative phase separation resulted in a dope comprising a gel-like coacervate phase dispersed in a casein solution with a third phase comprising casein aggregates.
Deepika, Sharma, Federico M, Harte, Gregory R, Ziegler   +2 more
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