Chemical Interaction-Induced Evolution of Phase Compatibilization in Blends of Poly(hydroxy ether of bisphenol-A)/Poly(1,4-butylene terephthalate).
Chemical Interaction-Induced Evolution of Phase Compatibilization in Blends of Poly(hydroxy ether of bisphenol-A)/Poly(1,4-butylene terephthalate).
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化学相互作用诱导的聚（双酚 A 羟基醚）/聚（对苯二甲酸 1,4-丁二醇酯）共混物相容性演化
DOI：
10.3390/ma11091667
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发表时间：
2018-09-09
期刊：
影响因子：
--
通讯作者：
Yang CF
中科院分区：
文献类型：
--
作者：
Liu J;Wang HC;Su CC;Yang CF
聚（双酚A的羟基醚）（苯氧基）和聚（1，4-丁二醇对苯二甲酸酯）（PBT）的不混溶的共混物中观察到的相分离的共混样品。苯氧基与PBT的化学交换反应可促进苯氧基/PBT共混物的增容作用。退火的苯氧基/PBT共混物具有单一Tg的均相，其可以通过在260 °C下退火来增强。红外光谱分析表明，苯氧基/PBT共混物的热处理可以促进相的均匀化，在热处理过程中，苯氧基中的悬挂羟基（-OH）和PBT中的羰基（C=O）发生了醇解交换。醇解反应将羰基中的芳族键改变为脂族键，这最初导致形成具有脂族/脂族羰基键的苯氧基和PBT的接枝共聚物。逐步醇解反应导致初始均聚物转化为嵌段共聚物，最终转化为无规共聚物，这促进了苯氧基与PBT共混物的相增容。随着共聚物量的增加，退火后，PBT的结晶被抑制共混物中的醇溶交换。
An immiscible blend of poly(hydroxy ether of bisphenol-A) (phenoxy) and poly(1,4-butylene terephthalate) (PBT) with phase separation was observed in as-blended samples. The compatibilization of phenoxy/PBT blends can be promoted through chemical exchange reactions of phenoxy with PBT upon annealing. The annealed phenoxy/PBT blends had a homogeneous phase with a single Tg that could be enhanced by annealing at 260 °C. Infrared (IR) spectroscopy demonstrated that phase homogenization could be promoted by annealing the phenoxy/PBT blend, where alcoholytic exchange occurred between the dangling hydroxyl group (–OH) in phenoxy and the carbonyl group (C=O) in PBT in the heated blends. The alcoholysis reaction changed the aromatic linkages to aliphatic linkages in the carbonyl groups, which initially led to the formation of a graft copolymer of phenoxy and PBT with an aliphatic/aliphatic carbonyl link. The progressive alcoholysis reaction resulted in the transformation of the initial homopolymers into block copolymers and finally into random copolymers, which promoted phase compatibilization in blends of phenoxy with PBT. As the amount of copolymers increased upon annealing, the crystallization of PBT was inhibited by alcoholytic exchange in the blends.
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DOI：
10.3390/ma10070829
发表时间：
2017-07-19
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Hsu YW;Wu CC;Wu SM;Su CC
通讯作者：
Su CC
影响因子：
3
作者：
HARRIS, JE;GOH, SH;BARLOW, JW
通讯作者：
BARLOW, JW
DOI：
10.1002/polb.1995.090331608
发表时间：
1995-11-30
影响因子：
--
作者：
SU, CC;KUO, JF;WOO, EM
通讯作者：
WOO, EM
DOI：
10.3390/ma10070692
发表时间：
2017-06-23
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Yang CF;Wang HC;Su CC
通讯作者：
Su CC
影响因子：
3.2
作者：
Farmahini-Farahani, Madjid;Jafari, Seyed-Hassan;Melati, Amir
通讯作者：
Melati, Amir