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Affiliation(s)
- Olivier Nguon
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada
- 3M Canada Company, London, Ontario, Canada
| | | | | | - Jian Li
- 3M Canada Company, London, Ontario, Canada
| | - Elizabeth R. Gillies
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario, Canada
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Sukriti, Kaith BS, Jindal R. Controlled biofertilizer release kinetics and moisture retention in gum xanthan-based IPN. Iran Polym J 2017; 26:563-77. [DOI: 10.1007/s13726-017-0539-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bai W, Wang Y, Song X, Jin X, Guo X. Modification of Urea-Formaldehyde Microcapsules With Lignosulfonate-Ca as Co-Polymer for Encapsulation of Acetochlor. Journal of Macromolecular Science, Part A 2014. [DOI: 10.1080/10601325.2014.936286] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hao Z, Guo Y, Mansuer M, Zhu J, Zhu Z. Role of the excess monomer in the growth of urea and formaldehyde resin deposit particles. J Colloid Interface Sci 2014; 430:239-48. [PMID: 24972294 DOI: 10.1016/j.jcis.2014.05.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 05/07/2014] [Accepted: 05/19/2014] [Indexed: 10/25/2022]
Abstract
The role of excess monomer (i.e., Urea (U) or Formaldehyde (F)) in UF precipitation reaction was investigated at 28°C. The maximum output of the UF resin deposit was found around the U:F molar ratio 1.0:1.0 and this output decreased if excessive urea (or formaldehyde) was used in the reaction system. The excess monomer was considered to decrease the polymerization degree of UF resin deposit and increased the bonding saturation of its copolymerization monomer as well as the solubility of the UF resin deposit. The Influence of the excess monomer on the lamellar crystallinity of the resultant deposit, involving the polymerization degree and bonding saturation of the monomer, was examined. Three different dynamic regions containing excess monomers were revealed according to the behaviors of the deposit nucleation. The density and water absorption of the UF resin particles were finally demonstrated relative to the dynamic regions in their nucleation reactions.
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Affiliation(s)
- Zhixian Hao
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China.
| | - Yuqing Guo
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Mulati Mansuer
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Junfu Zhu
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Zhirong Zhu
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China
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Rao KSVK, Subha MCS, Sairam M, Halligudi SB, Aminabhavi TM. Synthesis, characterization and controlled release characteristics of PEGylated hydrogels for diclofenac sodium. Des Monomers Polym 2012. [DOI: 10.1163/156855506777350992] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Reddy KM, Babu VR, Sairam M, Subha MCS, Mallikarjuna NN, Kulkarni PV, Aminabhavi TM. Development of chitosan-guar gum semi-interpenetrating polymer network microspheres for controlled release of cefadroxil. Des Monomers Polym 2012. [DOI: 10.1163/156855506778538047] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Gudasi KB, Vadavi RS, Sreedhar B, Sairam M, Shelke NB, Mallikarjuna NN, Kulkarni PV, Aminahbavi TM. Synthesis and characterization of some organopolyphosphazenes and their controlled-release characteristics. Des Monomers Polym 2012. [DOI: 10.1163/156855507780949227] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- K. B. Gudasi
- a Department of Chemistry, Karnatak University, Dharwad 580 003, India
| | - R. S. Vadavi
- b Department of Chemistry, Karnatak University, Dharwad 580 003, India
| | - B. Sreedhar
- c Thermal Analysis Center, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - M. Sairam
- d Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India
| | - N. B. Shelke
- e Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India
| | - N. N. Mallikarjuna
- f University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, TX 75390-9058, USA
| | - P. V. Kulkarni
- g University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, TX 75390-9058, USA
| | - T. M. Aminahbavi
- h Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India
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Affiliation(s)
- Shengjie Wang
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , People's Republic of China
| | - Qian Zhang
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , People's Republic of China
| | - Biwu Tan
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , People's Republic of China
| | - Liying Liu
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , People's Republic of China
| | - Linfeng Shi
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , People's Republic of China
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Devi N, Maji TK. Genipin Crosslinked Chitosan-κ-carrageenan Polyelectrolyte Nanocapsules for the Controlled Delivery of Isoniazid. INT J POLYM MATER PO 2010. [DOI: 10.1080/00914037.2010.484792] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
This paper shows two types of microcapsules used for electrophoretic display. One is prepared by in-situ polymerization which is based on urea, melamine and formaldehyde and another by complex coacervation, which is composed of gelatin and gum Arabic. Microcapsules attract interests of many research groups for longer lifetime of electrophoretic display by reducing agglomerization or lateral movements of nanoparticles. The gelatin microcapsules were more attractive in providing more uniform microcapsule coverage on electrodes due to their flexibility as compared to the melamine-urea microcapsules. The properties of microcapsules were characterized by FTIR, OM, SEM and TGA. Migration of nanoparticles in the two types of microcapsules was also observed when an electric field was applied.
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Affiliation(s)
- J K Song
- Department of Polymer Science and Engineering, Inha University, Incheon, Korea
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Vinod VP, Shinde S, d'Britto V, Shukla PG, Rao M. Preparation and Characterization of Urea-Formaldehyde-Pepsin Bioconjugate: A New Biocatalyst System. Biotechnol Prog 2006. [DOI: 10.1002/bp0602247] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kumbar SG, Kulkarni AR, Dave AM, Aminabhavi TM. Encapsulation efficiency and release kinetics of solid and liquid pesticides through urea formaldehyde crosslinked starch, guar gum, and starch + guar gum matrices. J Appl Polym Sci 2001. [DOI: 10.1002/app.2141] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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