GB787344A - Improvements in and relating to polyamides derived from -a-amino acid n-carboanhydrides - Google Patents
Improvements in and relating to polyamides derived from -a-amino acid n-carboanhydridesInfo
- Publication number
- GB787344A GB787344A GB642/55A GB64255A GB787344A GB 787344 A GB787344 A GB 787344A GB 642/55 A GB642/55 A GB 642/55A GB 64255 A GB64255 A GB 64255A GB 787344 A GB787344 A GB 787344A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carboanhydride
- phenyl
- styrene
- prepared
- ammonia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/10—Alpha-amino-carboxylic acids
Abstract
The condensation of a -amino acid N-carboanhydrides is initiated with a polymeric material formed by the polymerization of ethylenically unsaturated monomers which contain as the anhydride condensation-initiating group a primary or secondary amino group, the graft or block type copolymers produced being recovered. Specified a -amino acid N-carboanhydrides are DL-valine-N-carboanhydride, DL - phenyl - alanine - N - carboanhydride or DL - a - amino isobutyric acid - N - carboanhydride. The initiators may be prepared by polymerizing ethylenically unsaturated monomers in the presence of ammonia or a primary amine. Specified unsaturated monomers are styrene, vinyl toluene, methyl and ethyl methacrylates, acrylic acid and esters thereof, vinyl chloride, vinyl acetate, vinylidene chloride, butadiene, acrylonitrile, methacrylo nitrile or epoxy-containing alkyl esters of unsaturated aliphatic acids, e.g. glycidyl methacrylate. In the examples: (1) D L-valine-N-carboanhydride is condensed in the presence of an initiator prepared by polymerizing styrene in liquid ammonia containing sodium as a catalyst; (2) DL-phenyl - alanine - N - carboanhydride is condensed in the presence of a co-oplymerization product of styrene and glycidyl methacrylate prepared using benzoyl peroxide as catalyst which had been reacted with anhydrous ammonia; (3) DL-b -phenyl-analine-N-carboanhydride and DL-a -aminoisobutyric acid N-carboanhydride are condensed with the initiator of Example (2); (4) a copolymer of styrene and glycidyl acrylate prepared by heating the two reactants in the presence of a ,a -azo-diisobutyronitrile as catalyst is reacted with ammonia and used as initiator in the condensation of DL-phenyl - alanine - N - carboanhydride. The products are thermoplastic and may be moulded into transparent sheets. Specifications 653,597, 675,298 and U.S.A. Specifications 2,592,447, 2,644,808 and 2,657,972 are referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL104979D NL104979C (en) | 1955-01-08 | ||
| GB642/55A GB787344A (en) | 1955-01-08 | 1955-01-08 | Improvements in and relating to polyamides derived from -a-amino acid n-carboanhydrides |
| FR1145293D FR1145293A (en) | 1955-01-08 | 1956-01-06 | Process for the preparation of graft copolymers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB642/55A GB787344A (en) | 1955-01-08 | 1955-01-08 | Improvements in and relating to polyamides derived from -a-amino acid n-carboanhydrides |
| GB1145293X | 1955-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB787344A true GB787344A (en) | 1957-12-04 |
Family
ID=29422080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB642/55A Expired GB787344A (en) | 1955-01-08 | 1955-01-08 | Improvements in and relating to polyamides derived from -a-amino acid n-carboanhydrides |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR1145293A (en) |
| GB (1) | GB787344A (en) |
| NL (1) | NL104979C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3252966A (en) * | 1961-06-23 | 1966-05-24 | Gevaert Photo Prod Nv | Preparation of block and graft copolymers by photopolymerization in the presence of a photosensitizing dyestuff and a reducing agent |
| WO1999064495A1 (en) * | 1998-06-05 | 1999-12-16 | Ústav Makromolekulární Chemie Akademie Věd České Republiky | FUNCTIONALISED POLYMERS OF α-AMINO ACIDS AND THE METHOD OF PREPARATION THEREOF |
-
0
- NL NL104979D patent/NL104979C/xx active
-
1955
- 1955-01-08 GB GB642/55A patent/GB787344A/en not_active Expired
-
1956
- 1956-01-06 FR FR1145293D patent/FR1145293A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3252966A (en) * | 1961-06-23 | 1966-05-24 | Gevaert Photo Prod Nv | Preparation of block and graft copolymers by photopolymerization in the presence of a photosensitizing dyestuff and a reducing agent |
| WO1999064495A1 (en) * | 1998-06-05 | 1999-12-16 | Ústav Makromolekulární Chemie Akademie Věd České Republiky | FUNCTIONALISED POLYMERS OF α-AMINO ACIDS AND THE METHOD OF PREPARATION THEREOF |
Also Published As
| Publication number | Publication date |
|---|---|
| NL104979C (en) | |
| FR1145293A (en) | 1957-10-24 |
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