Zobrazeno 1 - 10 of 28 pro vyhledávání: '"Richard J. Ambrose"'
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Block polymers from isocyanate-terminated intermediates. II. Preparation of butadiene–ε-caprolactam and styrene–ε-caprolactam block polymers
Autor: William L. Hergenrother, Richard J. Ambrose
Publikováno v: Journal of Polymer Science: Polymer Chemistry Edition. 12:2613-2622
Polystyrene–nylon 6 and polybutadiene–nylon 6 block copolymers have been prepared from isocyanate-terminated prepolymers. From extraction and fractionation data the products obtained were found to be mixtures of both homopolymers and pure block c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45686c89fdd946c2cca509ecdd4e8839
https://doi.org/10.1002/pol.1974.170121114
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5
Cationic polymerization of α-methyl styrene from polydienes. II. Tensile properties of poly(butadiene-g-α-methyl styrene) and poly(styrene-b-butadiene-g-α-methyl styrene) copolymers
Autor: J. J. Newell, Richard J. Ambrose
Publikováno v: Journal of Applied Polymer Science. 25:1335-1340
Tensile properties of poly(butadiene-g-α-methyl styrene) copolymers have been investigated on molded samples. These graft copolymers show thermoplastic elastomer behavior because of their graft copolymer structure. Both modulus and strength increase
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3b66d06fe3a1273d20c074c59a4acb7
https://doi.org/10.1002/app.1980.070250707
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6
Block polymers from isocyanate-terminated intermediates. III. Preparation and properties of cured diene–urea block polymers
Autor: William L. Hergenrother, Richard J. Ambrose
Publikováno v: Journal of Applied Polymer Science. 19:1931-1937
Isoprene–urea and butadiene–urea block polymers have been prepared by reaction of isocyanate-terminated prepolymers with diamines and diisocyanates. It was found that the per cent of blocked urea in these copolymers is dependent on the isocyanate
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de76904ecf4e63b589b11be5422778b8
https://doi.org/10.1002/app.1975.070190713
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8
Cationic polymerization of α-methylstyrene from polydienes. I. Synthesis and characterization of poly(butadiene-g-α-methylstyrene) copolymers
Autor: J. J. Newell, Richard J. Ambrose
Publikováno v: Journal of Polymer Science: Polymer Chemistry Edition. 17:2129-2136
The preparation of poly(butadiene-g-α-methylstyrene) copolymers was investigated with three different alkylaluminum coinitiators. The alkylaluminum compounds in conjunction with polybutadiene which contained a low concentration of labile chlorine at
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db16a47a87ac7b68f4d3ca325b304508
https://doi.org/10.1002/pol.1979.170170721
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10
Block polymers from isocyanate-terminated intermediates. IV. Properties of cured butadiene–ɛ-caprolactam block polymers
Autor: Richard J. Ambrose, William L. Hergenrother
Publikováno v: Journal of Applied Polymer Science. 19:3225-3233
Butadiene–e-caprolactam block polymers containing a high proporation of 1,2 units in the butadiene-segments were synthesized and physical properties were measured on the cured copolymers. Flexural strength and impact resistance both increase regula
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7531de575436e0c4556ad772ad7145a7
https://doi.org/10.1002/app.1975.070191209
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