1997
DOI: 10.1002/(sici)1099-0518(19971115)35:15<3241::aid-pola17>3.0.co;2-b
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Copolymerization of bis(2-oxazoline)s, anhydrides, and diols or diamines. Reaction mechanisms and polymer properties

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Cited by 10 publications

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“…A reaction scheme suggested by Baker et al 22 is that anhydride groups in the presence of water can react with oxazoline functionality so that amide, ester linkage, and carboxylic acid groups generate like the proposed reaction scheme. On the other hand Po' et al 31 reported the reaction of anhydride and bis(2-oxazoline) monomer in the presence of diols led to linear polymers having ester-amide groups. Both routes proposed above can be expected in our experiments because there are appreciable amounts of hydroxyl end groups in the PC-anh as well as anhydride end groups, so that graft copolymers with amide and ester groups can be generated.…”
Section: Examination Of Melt Reactionmentioning
confidence: 99%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…A reaction scheme suggested by Baker et al 22 is that anhydride groups in the presence of water can react with oxazoline functionality so that amide, ester linkage, and carboxylic acid groups generate like the proposed reaction scheme. On the other hand Po' et al 31 reported the reaction of anhydride and bis(2-oxazoline) monomer in the presence of diols led to linear polymers having ester-amide groups. Both routes proposed above can be expected in our experiments because there are appreciable amounts of hydroxyl end groups in the PC-anh as well as anhydride end groups, so that graft copolymers with amide and ester groups can be generated.…”
Section: Examination Of Melt Reactionmentioning
confidence: 99%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…Also, secondary amines were used as nucleophiles to generate dicarboxylic acids in situ. 8 These ternary systems require accurate control of stoichiometry and investigation of kinetics is also crucial. Due to the polyaddition mechanism, even a small deviation from the stoichiometric molar ratio can account for the severely reduced degree of polymerization.…”
Section: Introductionmentioning
confidence: 99%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.