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Phase behavior, crystallization, and morphology of poly(ether ether ketone)/polyarylate blends.: An article from: Polymer Engineering and Science
	Authors: Rajendra K. Krishnaswamy, Douglass S. Kalika Publisher: Society of Plastics Engineers, Inc. Buy New: $5.95 as of 2/10/2012 21:07 MST details In Stock Seller: Amazon.com Format: HTML Language: English (Published) Media: Digital Pages: 21 ASIN: B00096JP56 Publication Date: March 1, 1996 Availability: Available for download now



Editorial Reviews: Product Description This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on March 1, 1996. The length of the article is 6272 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. From the author: The phase behavior, crystallization, and morphology of blends based on poly (ether ether ketone) [PEEK] and bisphenol-A polyarylate [PAr] are described. This system is partially miscible in the melt. Upon quenching to an amorphous glass the system displays two glass transitions corresponding to a nearly pure PEEK phase ([T.sub.g1]) and a PAr-rich mixed phase ([T.sub.g2]). The presence of the PAr has a strong retarding influence on the rate of crystallization of PEEK in the blends. Cold crystallization from the amorphous glass occurs in two stages with increasing temperature, corresponding to the mobilization of the PEEK-rich and PAr-rich phases, respectively. At lower cold-crystallization temperatures (below [T.sub.g2]), the immobile PAr-rich phase constrains crystallization of the PEEK-rich phase, as manifested in both a decreased rate of crystallization and decreased bulk crystallinity. Dynamic relaxation studies of the crystallized blends reveal two glass-rubber relaxations originating from interlamellar amorphous populations in the PEEK-rich and PAr-rich phases. In the PAr-rich phase, there is no evidence of large-scale PAr exclusion to interfibrillar or interspherulitic regions. Citation Details Title: Phase behavior, crystallization, and morphology of poly(ether ether ketone)/polyarylate blends. Author: Rajendra K. Krishnaswamy Publication: Polymer Engineering and Science (Refereed) Date: March 1, 1996 Publisher: Society of Plastics Engineers, Inc. Volume: v36 Issue: n6 Page: p786(11) Distributed by Thomson Gale

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