“…The solubility of polyimides from 4,4′‐aromatic dianhydrides was better than those were made from 3,3′‐aromatic dianhydrides, especially for the polymers based on HQDPAs. This result did not agree with the previous report about the isomer effect on the polyimides 12–15, 18–24. Generally speaking, polyimides from 3,3′‐dianhydrides exhibited higher solubility in organic solvents than those were made from 4,4′‐dianhydrides owing to the more bent structure that hinders packing of the macromolecular chains.…”
Section: Resultscontrasting
confidence: 89%
“…The T g values of polymers from 4,4′‐dianhydrides were higher than those were made from 3,3′‐dianhydrides, except for the polyimides synthesized from isomeric BPDAs. This phenomenon agreed with our previously reported polyimides derived from and 3,3′‐BAPI,11 but did not agree with most studies conducted on isomeric polyimides 12–15, 18–24. It can be assumed that the molecular structure interaction between chains and molecular weight have contribution to the observed thermal stability (i.e., T g s) of the polymer.…”
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.
“…The solubility of polyimides from 4,4′‐aromatic dianhydrides was better than those were made from 3,3′‐aromatic dianhydrides, especially for the polymers based on HQDPAs. This result did not agree with the previous report about the isomer effect on the polyimides 12–15, 18–24. Generally speaking, polyimides from 3,3′‐dianhydrides exhibited higher solubility in organic solvents than those were made from 4,4′‐dianhydrides owing to the more bent structure that hinders packing of the macromolecular chains.…”
Section: Resultscontrasting
confidence: 89%
“…The T g values of polymers from 4,4′‐dianhydrides were higher than those were made from 3,3′‐dianhydrides, except for the polyimides synthesized from isomeric BPDAs. This phenomenon agreed with our previously reported polyimides derived from and 3,3′‐BAPI,11 but did not agree with most studies conducted on isomeric polyimides 12–15, 18–24. It can be assumed that the molecular structure interaction between chains and molecular weight have contribution to the observed thermal stability (i.e., T g s) of the polymer.…”
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.
“…Regarding the peak temperature in the tan δ curves as the glass transition temperature ( T g ), the polymer 4,4‘-HQPDA/BAPI exhibited a T g at 378 °C and 3,3‘- HQPDA/BAPI at 371 °C. This result was not consistent with previous reports on the T g 's of isomeric polyimides. ,,,− It is also assumed that the BAPI unit dominated the conformation of the polymers, the isomeric effect, e.g., the rotation between phthalimide and oxygen of ether linkage in this case became the minor fact to affect the T g s. 3 DMTA curves of polyimide 3,3‘-HQPDA/BAPI and polyimide 4,4‘-HQPDA/BAPI.…”
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.
“…In our experiments, the order of T g 's (2,2′,3,3′‐> 2,3,3′,4′‐> 3,3′,4,4′‐ODPA based) contradicts the results of previous research18 about the isomeric ODPA‐based polyimides but agrees with most studies about polyimides from other isomeric dianhydrides 19–27. The results differed from those in ref.…”
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.
Scite is an AI-powered platform that helps researchers discover and evaluate scientific literature through Smart Citations, showing whether studies support or contradict a claim. Now part of Research Solutions, Scite has indexed 1.6B+ citations, partners with 30+ publishers, and serves 2M users worldwide.
