Matches in SemOpenAlex for { <https://semopenalex.org/work/W2039984181> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W2039984181 abstract "One-to-one block polymers of styrene and acrylonitrile were prepared by a two step process: (1) styrene was polymerized in the presence of a dialkylphosphine and (2) the polystyrene was used to initiate the polymerization of acrylonitrile. The blocks contained 14–76% acrylonitrile and were 60–100% pure as judged by extraction with toluene at 110°C. Phase and electron microscopy showed that the block polymers consisted of a continuous polystyrene phase when the acrylonitrile content was less than 70% by weight and of a continuous acrylonitrile phase when the acrylonitrile content was above 70% by weight. The polyacrylonitrile dispersed phase was regular and almost spherical. Its measured size equaled the calculated size, assuming that the spheres had a diameter of twice the length of the fully extended polyacrylonitrile chains. Polyblends of homopolymers were similar to the block polymers in structure, except that the dispersed phase was very irregular in size and shape. The physical properties of blocks and polyblends were similar and were inferior to those of polystyrene homopolymers and styrene–acrylonitrile random copolymer except for modulus and for maintenance of modulus over a temperature range. The random copolymer had the highest strength properties, which fact was attributed to the absence of a two phase system and the presence of psuedo-crosslinks. The relatively poor properties of the blocks and polyblends were ascribed to the inability of bulk polyacrylonitrile to absorb energy and to the buildup of stress concentrations at the phase boundaries." @default.
- W2039984181 created "2016-06-24" @default.
- W2039984181 creator A5061187531 @default.
- W2039984181 date "1964-11-01" @default.
- W2039984181 modified "2023-09-25" @default.
- W2039984181 title "Block polymers of styrene and acrylonitrile" @default.
- W2039984181 doi "https://doi.org/10.1002/app.1964.070080609" @default.
- W2039984181 hasPublicationYear "1964" @default.
- W2039984181 type Work @default.
- W2039984181 sameAs 2039984181 @default.
- W2039984181 citedByCount "19" @default.
- W2039984181 crossrefType "journal-article" @default.
- W2039984181 hasAuthorship W2039984181A5061187531 @default.
- W2039984181 hasConcept C127413603 @default.
- W2039984181 hasConcept C15920480 @default.
- W2039984181 hasConcept C159985019 @default.
- W2039984181 hasConcept C178790620 @default.
- W2039984181 hasConcept C185592680 @default.
- W2039984181 hasConcept C188027245 @default.
- W2039984181 hasConcept C192562407 @default.
- W2039984181 hasConcept C2776056205 @default.
- W2039984181 hasConcept C2777566558 @default.
- W2039984181 hasConcept C2777922577 @default.
- W2039984181 hasConcept C2778372188 @default.
- W2039984181 hasConcept C2781431410 @default.
- W2039984181 hasConcept C42360764 @default.
- W2039984181 hasConcept C44228677 @default.
- W2039984181 hasConcept C44280652 @default.
- W2039984181 hasConcept C521977710 @default.
- W2039984181 hasConceptScore W2039984181C127413603 @default.
- W2039984181 hasConceptScore W2039984181C15920480 @default.
- W2039984181 hasConceptScore W2039984181C159985019 @default.
- W2039984181 hasConceptScore W2039984181C178790620 @default.
- W2039984181 hasConceptScore W2039984181C185592680 @default.
- W2039984181 hasConceptScore W2039984181C188027245 @default.
- W2039984181 hasConceptScore W2039984181C192562407 @default.
- W2039984181 hasConceptScore W2039984181C2776056205 @default.
- W2039984181 hasConceptScore W2039984181C2777566558 @default.
- W2039984181 hasConceptScore W2039984181C2777922577 @default.
- W2039984181 hasConceptScore W2039984181C2778372188 @default.
- W2039984181 hasConceptScore W2039984181C2781431410 @default.
- W2039984181 hasConceptScore W2039984181C42360764 @default.
- W2039984181 hasConceptScore W2039984181C44228677 @default.
- W2039984181 hasConceptScore W2039984181C44280652 @default.
- W2039984181 hasConceptScore W2039984181C521977710 @default.
- W2039984181 hasLocation W20399841811 @default.
- W2039984181 hasOpenAccess W2039984181 @default.
- W2039984181 hasPrimaryLocation W20399841811 @default.
- W2039984181 hasRelatedWork W1967770044 @default.
- W2039984181 hasRelatedWork W1977919266 @default.
- W2039984181 hasRelatedWork W1984998781 @default.
- W2039984181 hasRelatedWork W1988242130 @default.
- W2039984181 hasRelatedWork W2009047152 @default.
- W2039984181 hasRelatedWork W2016397193 @default.
- W2039984181 hasRelatedWork W2035050470 @default.
- W2039984181 hasRelatedWork W2038217931 @default.
- W2039984181 hasRelatedWork W2062731325 @default.
- W2039984181 hasRelatedWork W2065365933 @default.
- W2039984181 hasRelatedWork W2071143015 @default.
- W2039984181 hasRelatedWork W2164492933 @default.
- W2039984181 hasRelatedWork W2313361429 @default.
- W2039984181 hasRelatedWork W2315695611 @default.
- W2039984181 hasRelatedWork W2319364573 @default.
- W2039984181 hasRelatedWork W2382011280 @default.
- W2039984181 hasRelatedWork W2390178513 @default.
- W2039984181 hasRelatedWork W2469088413 @default.
- W2039984181 hasRelatedWork W2845695971 @default.
- W2039984181 hasRelatedWork W2875990399 @default.
- W2039984181 isParatext "false" @default.
- W2039984181 isRetracted "false" @default.
- W2039984181 magId "2039984181" @default.
- W2039984181 workType "article" @default.