Analogue calorimetry of polymer blends: Poly(styrene-co-acrylonitrile) and poly(phenyl acrylate) or poly(vinyl benzoate)
Analogue calorimetry of polymer blends: Poly(styrene-co-acrylonitrile) and poly(phenyl acrylate) or poly(vinyl benzoate)
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DOI：
10.1016/0032-3861(96)85356-0
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发表时间：
1996-06-01
期刊：
影响因子：
4.6
通讯作者：
Bhattacharyya, SN
中科院分区：
文献类型：
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作者：
Rana, D;Mandal, BM;Bhattacharyya, SN
与聚（丙烯酸苯酯）（PPA）不同，其异构体聚（苯甲酸乙烯酯）（PVBZ）与聚（苯乙烯-丙烯腈共聚物）（SAN）不混溶。PPA和PVBZ对SAN的相容性行为的差异还反映在相应共混物组分的低分子量类似物在对应于共混物中phi（SAN）= 0.92的组成下的混合热（Δ H-m）中。事实证明，聚丙烯腈（PAN）的氢化单体丙腈非常不适合作为后者的类似物。相比之下，具有更接近PAN的溶解度参数的乙腈是PAN的相当可接受的类似物，就PAN与PPA的可溶解性而言，在富含PAN的区域中，phi（PAN）> 0.7。(C)1996年Elsevier Science Ltd.
Unlike poly(phenyl acrylate) (PPA), its isomer poly(vinyl benzoate) (PVBZ) is immiscible with poly(styrene-co-acrylonitrile) (SAN). The difference in miscibility behaviour of PPA and PVBZ towards SAN is also reflected in the heats of mixing (Delta H-m) of the low-molecular-weight analogues of the respective blend components at compositions corresponding to phi(SAN) = 0.92 in the blend. It turns out that propionitrile, the hydrogenated monomer of polyacrylonitrile (PAN), is very unsuitable as an analogue of the latter. In contrast, acetonitrile, having a solubility parameter closer to PAN, is a fairly acceptable analogue of PAN as far as miscibility of the latter with PPA is concerned in the PAN-rich region, phi(PAN) > 0.7. (C) 1996 Elsevier Science Ltd.