+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

A new method of preparing monocored water-loaded microcapsules using interfacial polymer deposition process

, : A new method of preparing monocored water-loaded microcapsules using interfacial polymer deposition process. Journal of Microencapsulation 1(1): 3-8

A new method was proposed to prepare monocored water-loaded microcapsules with diameters of 50 microns or larger by making use of the process of interfacial polymer deposition. A solution of ethylcellulose or polystyrene in dichloromethane was added dropwise to an O/W emulsion in which n-hexane was dispersed as fine droplets in aqueous gelatin solution. Successive evaporation of dichloromethane at 40 degrees C and n-hexane at 80 degrees C gave monocored water-loaded ethylcellulose or polystyrene microcapsules. Monocored water-loaded ethylcellulose/polystyrene composite microcapsules were similarly prepared using mixed solutions of the two polymers in dichloromethane instead of ethylcellulose or polystyrene solution. When those mixed solutions which exhibit phase separation were used, the composite microcapsules obtained had a patchwork-like structure in which polystyrene-rich islands are dispersed in the ethylcellulose-rich sea.


PMID: 6336513

DOI: 10.3109/02652048409031531

Other references

Rudneva L.M., 1974: The significance of the hypothalamus in the growth regulation in ducks during the embryonic and post embryonic periods of development. By means of local electrocoagulation of the hypothalamus in 10-day-old ducklings, an acute inhibition of total growth was observed on lesioning of the region of paraventricular nuclei, or the area located between these nuclei and the median eminen...

Howard, B.K.; Mabry, R.L.; Meyerhoff, W.L.; Mabry, C.S., 1997: Use of a screening RAST in a large neuro-otologic practice. Evidence in the literature emphasizes the role of the immune system in disorders of the inner ear and eustachian tube. We initially investigated the presence of inhalant allergy in selected patients seen for otologic problems by means of a screeni...

Woolston, J.L., 1987: Obesity in infancy and early childhood. Journal of the American Academy of Child and Adolescent Psychiatry 26(2): 123-126

Zenda, T.; Takayama, T.; Miyamoto, M.; Yamaguchi, S.; Endo, T.; Inaba, H., 2011: Intravascular gas in multiple organs detected by postmortem computed tomography: effect of prolonged cardiopulmonary resuscitation on organ damage in patients with cardiopulmonary arrest. A 76-year-old woman was found in cardiopulmonary arrest with her head submerged in water in a bathtub. Despite cardiopulmonary resuscitation (CPR) for over 1 h by professional emergency technicians and medical doctors, the patient died. Postmortem...

Heiligenhaus, A.; Mrzyk, S.; Bauer, D.; Anastassiou, G.; Steuhl, K.P., 1998: Apoptosis in human HSV-1 stromal keratitis. IOVS 39(4): S1064, March 15

Shrestha, M., 2016: Re: Distal aortic reintervention after surgery for acute DeBakey type I or II aortic dissection: open versus endovascular repair. European Journal of Cardio-Thoracic Surgery 48(2): 264-265

Volkov, V.S.; Poseliugina, O.B.; Svistunov, O.P., 2004: Clinical and functional characteristics of hypertension in patients consuming excessive amounts of salt. Salt sensitivity threshold was measured in 230 patients with arterial hypertension and clinical and functional characteristics of hypertension in patients consuming excessive amounts of salt were studied. Patients with high salt sensitivity thresh...

Wagner, C.; Kurtz, A., 2001: Relevance of Cox-2 in the regulation of the renin gene expression in the mouse kidney. Pfluegers Archiv European Journal of Physiology 441(6 Supplement): R194

Filatov, V.I.; Sagirova, R.A., 2005: Introduction of Galega orientalis Lam. in Eastern Siberia. Galega orientalis Lam. is a new perspective fodder leguminous variety which is characterized by ecological plasticity and adaptability, having high fodder and seed productivity. For the first time in Eastern Siberia during long term experiments in...

Chevin, H., 1988: Athalia maculata Mocsary, 1879, nouveau synonyme dAthalia rufoscutellata Mocsary 1879 Hym Tenthredinidae. Entomologiste (Paris): 443: 147-148