scholarly journals Chemical modification strategies for viscosity-dependent processing of gellan gum

2021 ◽  
pp. 118335
Author(s):  
Christine Gering ◽  
Anum Rasheed ◽  
Janne T. Koivisto ◽  
Jenny Párraga ◽  
Sampo Tuukkanen ◽  
...  
Keyword(s):  
Chemical Modification ◽  
Gellan Gum

scholarly journals The use of natural polymers for treatments enhancing sowing material

Polimery ◽  
2021 ◽  
Vol 66 (1) ◽  
pp. 11-20
Author(s):  
Grażyna K Korbecka-Glinka ◽  
Maria Wiśniewska-Wrona ◽  
Ewa Kopania
Keyword(s):  
Chemical Modification ◽  
Chemical Properties ◽  
Gellan Gum ◽  
Seed Coating ◽  
Physical And Chemical Properties ◽  
Natural Polymers ◽  
Physical And Chemical ◽  
Germinating Seeds ◽  
Active Substances ◽  
And Chemical Properties

Biopolymers from a group of polysaccharides are used in treatments enhancing sowing material of crops due to their physical and chemical properties, susceptibility to chemical modification, biodegradability and high bioactivity. Natural polymers, such as: chitosan, alginian, celulose, galaktoglucomannans, lignin and gellan gum, can be used as binders in seed coating or carriers of active substances and microorganisms. Moreover, biopolymers contained in the seed coatings and seed dressings can protect germinating seeds from unfavorable influence of environment and pathogens.

Photoconductivity in Vacuum Deposited Films of Silicon-Based Polymers

1996 ◽  
Vol 444 ◽  
Author(s):  
H. Okumoto ◽  
M. Shimomura ◽  
N. Minami ◽  
Y. Tanabe
Keyword(s):  
Charge Transfer ◽  
Chemical Modification ◽  
Electronic Transport ◽  
Hole Transport ◽  
Electron Acceptors ◽  
Oxygen Atmosphere ◽  
Dangling Bonds ◽  
Silicon Based ◽  
Deposited Films

AbstractSilicon-based polymers with σconjugated electrons have specific properties; photoreactivity for microlithography and photoconductivity for hole transport materials. To explore the possibility of combining these two properties to develop photoresists with electronic transport capability, photoconductivity of polysilanes is investigated in connection with their photoinduced chemical modification. Increase in photocurrent is observed accompanying photoreaction of poly(dimethylsilane) vacuum deposited films. This increase is found to be greatly enhanced in oxygen atmosphere. Such changes of photocurrent can be explained by charge transfer to electron acceptors from Si dangling bonds postulated to be formed during photoreaction.

Chemical modification of lignin-rich paper

1998 ◽  
Vol 13 (2) ◽  
pp. 124-131 ◽  
Author(s):  
Magnus Paulsson ◽  
Arthur J. Ragauskas
Keyword(s):  
Chemical Modification

Chemical modification of lignin-rich paper

1996 ◽  
Vol 11 (2) ◽  
pp. 109-114 ◽  
Author(s):  
Magnus Paulsson ◽  
Shiming Li ◽  
Knut Lundquist ◽  
Rune Simonson ◽  
Ulla Westermark
Keyword(s):  
Chemical Modification

Chemical modification of lignin-rich paper

1995 ◽  
Vol 10 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Magnus Paulsson ◽  
Rune Sirnonson ◽  
Ulla Westermark
Keyword(s):  
Chemical Modification

Preparation and Characterisation of Carvacrol Encapsulated in Gellan Gum Hydrogel

2017 ◽  
Vol 4 (1) ◽  
pp. 9-14
Author(s):  
Adila Mohamad Jaafar ◽  
Norafida Hasnu ◽  
Nur Aisyah Nasuha Mohd Azam
Keyword(s):  
Gellan Gum
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