Abstract:
:Polymers produced by horseradish-peroxidase-catalyzed coupling of phenols have been explored as potential substitutes for phenol-formaldehyde resins. To overcome low substrate solubilities and product molecular weights in water, enzymatic polymerizations in aqueous-organic mixtures have been examined. Peroxidase vigorously polymerizes a number of phenols in mixtures of water with water-miscible solvents such as dioxane, acetone, di-methylformamide, and methyl formate with the solvent content up to 95%. As a result, various phenolic polymers with average molecular weights from 400 to 2.6 x 10(4) D were obtained depending on the reaction medium composition and the nature of the phenol. Peroxidase-catalyzed copolymerization of different phenols in 85% dioxane was demonstrated. Poly(p-phenylphenol) and poly(p-cresol) were enzymatically prepared on a gram scale. They had much higher melting points, and in addition, poly(p-phenylphenol) was found to have a much higher electrical conductivity than phenol-formaldehyde resins.
journal_name
Biotechnol Bioengjournal_title
Biotechnology and bioengineeringauthors
Dordick JS,Marletta MA,Klibanov AMdoi
10.1002/bit.260300106subject
Has Abstractpub_date
1987-07-01 00:00:00pages
31-6issue
1eissn
0006-3592issn
1097-0290journal_volume
30pub_type
杂志文章abstract::A two-stage bioreactor scheme was developed for the large-scale production of recombinant proteins using a genetically engineered baculovirus/insect cell system. The first bioreactor was employed for cell growth and the second for cell infection. Silkworm Bm5 cells were infected with a recombinant baculovirus, BmNPV/P...
journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260420313
更新日期:1993-07-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
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更新日期:1992-02-05 00:00:00
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journal_title:Biotechnology and bioengineering
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journal_title:Biotechnology and bioengineering
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更新日期:1984-10-01 00:00:00
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journal_title:Biotechnology and bioengineering
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更新日期:1987-04-01 00:00:00
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更新日期:2005-07-05 00:00:00
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journal_title:Biotechnology and bioengineering
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journal_title:Biotechnology and bioengineering
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journal_title:Biotechnology and bioengineering
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doi:10.1002/bit.260270609
更新日期:1985-06-01 00:00:00
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journal_title:Biotechnology and bioengineering
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doi:10.1002/bit.23324
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journal_title:Biotechnology and bioengineering
pub_type: 传,古典文章,历史文章,杂志文章
doi:
更新日期:2000-03-20 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0290(19961005)52:1<141::AID-BIT
更新日期:1996-10-05 00:00:00
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journal_title:Biotechnology and bioengineering
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更新日期:2016-07-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260221007
更新日期:1980-10-01 00:00:00